WooCommerce Lightspeed POS

WooCommerce Lightspeed POS allows you to integrate and import inventory from Lightspeed to WooCommerce and sync inventory across both systems.

This extension requires a Lightspeed Retail account. If you do not have one, you can sign up for a free Lightspeed trial account here.

Please Note: this plugin does NOT integrate with Lightpseed eComm. It is specific to Lightspeed Retail.

Installation ↑ Back to top

  1. Download the .zip file from your WooCommerce.com account.
  2. Go to: WordPress Admin > Plugins > Add New to upload the file you downloaded with Choose File.
  3. Activate the extension.

More information at: Installing and Managing Plugins.

Concept ↑ Back to top

Before we get started, here is a little theory to help you understand what kind of sync relationship this extension establishes.

The sync scenario: ↑ Back to top

It is helpful to know the difference between a 1-way and 2-way sync scenario. This extension sets up a 1-way sync scenario. What does that ensue? Here is a rough concept draft of it:

Initial Setup 1-way sync (available) ↑ Back to top

  • WooCommerce is empty, no products.
  • Lightspeed is full, many products.
  • Lightspeed fills WooCommerce with products. Initial Import (See next: Load Products from Lightspeed POS).
  • WooCommerce sells products and feeds inventory changes back to Lightspeed
  • Product management is done in Lightspeed for all values that are synced by the extension: Price, images etc. while WooCommerce provides the beautiful storefront.

This is what defines a 1-way sync scenario using this extension to sync Lightspeed with your WooCommerce store: Lightspeed overrules / manages WooCommerce product inventory while WooCommerce feeds selected info (sales, inventory) back to it. We try to depict this in our little header graphic.

Due to the fact that Lightspeed is the deciding factor in this system, we call Lightspeed the “Source of Truth”.

The whole scenario is not a 2-way sync in a way that:

Initial Setup 2-way sync (not available) ↑ Back to top

  • WooCommerce has some products
  • Lightspeed has some products
  • WooCommerce and Lightspeed get scanned and compared upon each sync or import request
  • Products that match on both sides get linked to each other
  • Products missing on either side get copied over

With that in mind, lets begin with the initial import.

Setup and Configuration ↑ Back to top


1. Go to: WooCommerce > Settings > Integration > WooCommerce Lightspeed POS Integration.

2. Click the Connect to Lightspeed button:

WooCommerce Lightspeed POS settings page

3. Log into Lightspeed, and click the Authorize Application button when redirected to the Lightspeed Retail page:

Lightspeed Authorization Screen

4. Confirm your site when the WooCommerce API connector requests it:

WooThemes API Connector

Once confirmed, you’ll be redirected to your site. If authorization completed successfully, a success message and your store name will appear on the Settings page:

Lighspeed Authorization Success

Enable stock management ↑ Back to top

Under WooCommerce -> Settings -> Products -> Inventory, we highly recommend you have “Enable stock management” enabled. This setting allows WooCommerce to automatically adjust inventory as customers make orders, cancel them, etc. The plugin leverages WooCommerce’s actions and hooks around these types of behaviors to know when to trigger sync events.

Set “Out of Stock Threshold” to 2 or more ↑ Back to top

Under WooCommerce -> Settings -> Products -> Inventory, we highly recommend to set a “Out of Stock Threshold” to 2 or more in order to avoid the plugin from attempting negative quantity updates.

Multi-store configuration ↑ Back to top

This extension can read but not sync multiple stores from your Lightspeed account. You must set one primary inventory source for WooCommerce.

  1. Tick the checkbox(es) of stores from which you want to import products.
  2. Tick the primary inventory store – this is the store that the plugin will use to sync inventory to and from.
  3. Save changes.
Multistore setup
Multi-store setup
Note: WooCommerce by default does not support multiple inventory locations. If you have multiple Lightspeed stores, you must designate one of them as your primary “inventory” store that the plugin will use to read inventory values from as well as sync inventory values to. 

Set the default state of an imported product ↑ Back to top

In the settings page, you can designate the default status of the product upon import:

This will apply to all products on import. Variation products will inherit the status from their parent matrix/variable product. This means that even if the setting is set to “Draft”, newly added variation products will go straight to a “Publish” status if their parent product is already live and published. Also note that upon installation the default status is set to “Draft”.

Selective Sync ↑ Back to top

You can select which product properties should get updated for WooCommerce products that are actively being synced.

Selective Sync from Lightspeed to WooCommerce Products

On an initial import for of a Lightspeed product into WooCommerce, all the product properties will be present, however on subsequent updates the Selective Sync settings allow you, for example, to only have “Stock Quantity” and “Regular Price” and “Sale Price” be synced from Lightspeed on a sync event. All other properties will not be overwritten! This can be useful if you want to publish products in WooCommerce without the sync event overwriting images, descriptions, etc that you may have setup in WooCommerce but not Lightspeed.

The properties you can selectively sync are:

  • Name – in Lightspeed, this is the description. In Woo, it will be the product title.
  • SKU – in Lightspeed, you have 3 different options for SKU – Custom SKU,  Manufacturer’s SKU or System SKU – the plugin use the first SKU value it can find in that order.
  • Regular Price – the “Default” price field in Lightspeed
  • Sale Price – You will have to create new “Sale” Price Level in Lightspeed read this section on how to set this up.
  • Stock Quantity – the value “In Stock” value under the Details tab in Lightspeed
  • Image – all of the images set up in Lightspeed for a particular product will be downloaded to WooCommerce. The first image in your Lightspeed gallery will be set as the featured image in WooCommerce. If it is a variable/matrix product, then the parent product’s first image in the gallery will be used as the featured image.
  • Attributes – If the product is a matrix product, then the plugin will try to convert these attributes into product attribute taxonomy terms in WooCommerce, otherwise if this is unchecked, the plugin will use custom attributes by default.
Note: The “Legacy Web Store” fields pertain to a legacy Lightspeed feature – see FAQ.

Selective Sync From WooCommerce to Lightspeed Products

Once a product is imported from Lightspeed into WooCommerce, you can select which properties of a WooCommerce product should sync back to Lightspeed when you update the product in WooCommerce. This means the properties in Lightspeed will be overwritten once you update a WooCoomerce product via the product page in the admin dashboard.

Differences between “Stock Quantity (manual updates)” and “Stock Quantity (non-manual updates, e.g. orders)”:

  • The “Stock Quantity (non-manual updates)” setting corresponds to manually updating a WooCommerce Product’s inventory level via the admin product page.
  • The “Stock Quantity (non-manual updates, e.g. orders)” setting corresponds to a stock quantity updated as a result of a customer’s order or a refund. With this property enabled, the plugin will automatically push updates to Lightspeed to update the corresponding Lightspeed product’s inventory levels.
Note: that selective sync settings will apply globally to all WooCommerce products that are being actively synced!

Ignore Archived Lightspeed Products ↑ Back to top

You can tell the plugin to ignore archived items upon loading them into the import table. This is a setting in the Lightspeed Settings page:

This means all of your archived items in Lightspeed will not show up in the Lightspeed import table in WooCommerce.

Prune Deleted Variations ↑ Back to top

When you click on the “Manual Update via Lightspeed” button a product, this setting will tell the plugin to automatically delete any variations that have been deleted in Lightspeed for matrix products. In WooCommerce, this translates to automatically deleting variations in a variable product.

Note: in Lightspeed – the way to “delete” a variation is by going to the Matrix’s “Setup” page and clicking the “X” button to the right of the edit button.

Background Jobs ↑ Back to top

Note: background jobs are run via Action Scheduler. If you want to run the job manually, you can go to Tools -> Scheduled Actions, click on the “Pending” option at the top, and click on the “run” link under the job.
Warning: Other plugins that utilize Action Scheduler can block these jobs from getting triggered. If you see a notification under Tools -> Action Scheduler that says “Maximum simultaneous queues already in progress (1 queue). No additional queues will begin processing until the current queues are complete“, then this might mean a job is stuck in the “Processing” state and is not letting other jobs – like the ones that this plugin relies on – from getting triggered. The best thing to do here is disable the plugin that is causing the issue, cancel the job that is stuck in processing, and reach out to the plugin author to have them look into it.

You can enable/disable two background jobs:

Auto-polling Lightspeed product changes

Runs every 5 seconds and looks at the timestamp field to determine which products were recently modified in Lightspeed. “Recently modified” means changes to:

  • Inventory
  • SKU/Description/Pricing
  • Images

The plugin will look at all of the properties that are checked off in the Selective Sync for WooCommerce Products settings and update those properties for the associated WooCommerce product.

Check for new Lightspeed Products

This runs every 30 seconds and looks for newly created Lightspeed products. When it finds new products, it will inform you with a notice:

If the product is a newly created variation, it will automatically add that variation to the associated WooCommerce variable product.

Action after auto-loading products

If the “Check for new Lightspeed products” job is enabled, then you will also have the option to select what action to take after a product is auto-loaded. You have three options:

  • Do nothing – do not perform any action
  • Import – Import the auto-loaded Lightspeed Product into WooCommerce – but do not actively sync it
  • Import & Sync – Import the auto-loaded Lightspeed Product into WooCommerce –  and actively sync it
Note: new products are added to the Action Scheduler queue and will not be imported immediately. Please be patient and wait for the Action Scheduler to process the queue!
Note: when auto-loading matrix products, the matrix “parent” product needs to have at least one variation (child) products in order for the auto-loading event to pick up the matrix “parent” product and have it displayed in the Lightspeed import table.

Usage ↑ Back to top

Add Products using the Lightspeed API Navigator ↑ Back to top

Version 1.7.9 introduced the Lightspeed API Navigator that allows you to search your Lightspeed store in real time. This is useful if the “Check for new Lightspeed Products” job failed for some reason or you don’t want to have this job enabled.

To initiate the navigator, click on the “Search Lightspeed API” button the Lightspeed Import Page

You can search for either “Single” products which translate to either Variations or Simple products in WooCommerce, or Matrix products which translate to Variable products in WooCommerce. In the search bar you can either type in the description of an item, or a specific SKU or CustomSKU value.

Tick the checkboxes corresponding to the products you’d like to add to the Lightspeed Import Table, and click apply.

The Navigator modal should dissappear and take you back to the main Import Table page, and a “Adding products…” notification should pop up. Once all products are added, you should be able to search for them in the Import Table and import them into your WooCommerce store.

Note: adding products that have already been imported is equivalent to updating those products
Note: adding variation products through the navigator will perform two checks: 1. If the parent matrix product is absent, the plugin will automatically add the parent matrix product to the import table and 2. if the parent matrix product has already been imported and has a corresponding WooCommerce product associated with it, then the plugin will automatically import the variation product and set its status to that of the parent WooCommerce variable product.

Load Products from Lightspeed POS ↑ Back to top

Once setup and configuration are complete and API settings are initialized, Lightspeed POS products can be loaded.

  1. Go to: WooCommerce > Lightspeed.
  2. Click the Load Products from Lightspeed button.
Note: It may take a few minutes to finish. Please be patient. The extension will first load products and then matrix products.

WooCommerce Lightspeed POS first loads products without making them live on your WooCommerce store. This allows you to pick and choose which products to import.

Import and Sync Products from Lightspeed POS ↑ Back to top

Once products are loaded from Lightspeed POS, your screen should populate a table with products. For example:

WooCommerce LightSpeed POS Import Page with LightSpeed Products
WooCommerce Lightspeed POS Import Page with Products

There are five actions that can be performed on products loaded from Lightspeed:

  • Import & Sync – Imports the product on your WooCommerce store and marks it as a “synced” product. What does this mean? Your product is now available in WooCommerce >> Products. It is published and visible in the front end. Also a sync link relationship is now established. The WooCommerce product and it’s Lightspeed source product are now linked to each other. The extension installs an Action Scheduler job that runs every five seconds, to ensure that items with established sync links are added to the sync list. Products are checked against Lightspeed for any changes every five seconds and additionally on these events.
  • Import – Makes the product live on your WooCommerce store, but doesn’t attempt to sync it with Lightspeed later. No sync link relationship is  established.
  • Sync – Establishes a sync link with its corresponding Lightspeed product. If a product has not been imported, it cannot be synced.
  • Update – Pulls all Lightspeed data and immediately updates the WooCommerce product linked to it. Caution: This will override attributes of live products in your store!
  • Delete – Removes a product from the table of loaded Lightspeed POS products. Useful if you want to purge any Lightspeed data that is lingering in WooComerce.
Note: Mistakes happen. We recommend to keep frequent database updates, so you can rollback when you synced one time too much. Open a support ticket if you need assistance with this.
Warning: after importing products in WooCommerce, state changes like archiving products or merging products do not translate well into WooCommerce. If you need to archive or merge products in Lightspeed, we recommend to delete the associated products in Woo and then import the new ones.

Matrix/variable product support ↑ Back to top

In Lightspeed, “Matrix Products” are equivalent to WooCommerce’s “Variable Products“. We recommend you read the documentation on both platforms before using this plugin because these concepts take some time to learn. Both of them.

On the Lightspeed page, Matrix items have a “stacked” look, which is different from single items. It displayed a “-” for the SKU and inventory columns. Importing and syncing Matrix items is the same as importing single items.

Note: While Lightspeed counts each Matrix item as one separate item, WooCommerce does not. It bundles together variable products as one thus the product count in WooCommerce and Lightspeed will be different if you use matrix products.

Importing Matrix/variable products ↑ Back to top

When importing a Matrix product from Lightspeed into WooCommerce, a new variable product is created and the following properties are downloaded and automatically generated:

Syncing with Matrix items is straightforward. Whenever inventory is set for variation items, it pushes that data to Lightspeed. Also, every five seconds a sync job will pick up on any changes made to variations in Lightspeed and then proceed to update the variations in WooCommerce.

Note: The plugin will automatically set the stock status of a variation product to “In stock” if the inventory is greater than zero.

Import all products ↑ Back to top

If you want to mass import products, click the Import All button. If you want all the products to be actively synced after they are imported, check off the “Sync” checkbox right next  to the button:

Note: Importing all products can take time, depending on how many you have. Do not close the browser window until complete, or you need to start over. As stated above: Import – Makes the product live on your WooCommerce store, but doesn’t attempt to sync it with Lightspeed later. No sync link relationship is  established.

Clear All Loaded Products ↑ Back to top

Clears out all loaded Lightspeed product data from the database – think of this as starting with a clean slate.

Careful! This will destroy any sync relationships set up with existing WooCommerce products!

Categories ↑ Back to top

WooCommerce Lightspeed POS also allows you to import product categories with one click. Go to your Lightspeed settings located at WooCommerce >> Settings >> Integrations and click on “Import Lightspeed Categories”.

Note:When setting up your categories do keep in mind that this is a one time import. Categories are not synced continuously nor are they removed in your WooCommerce store when they are removed in your Lightspeed. The “Delete Category Cache” button will clear out the Lightspeed categories stored in the database and allow you to re-import them.

Subcategories ↑ Back to top

Subcategories that share the same parent category (so called sibling categories) must have unique category names.

While Lightspeed allows sibling categories to have identical names, WordPress does not. In WordPress each slug (URL path) must be unique. Make sure that subcategories that share the same parent all have unique names.

Tags ↑ Back to top

Tags are imported with the first sync from Lightspeed to WooCommerce.

Old or deleted Tags/Categories in Lightspeed ↑ Back to top

Due to the nature of this import, product categories and tags are only applied not removed. The sync does add active categories to products, but so far it does not remove obsolete ones, when you remove them on the Lightspeed side.

Send Products from WooCommerce to Lightspeed POS ↑ Back to top

When using this extension you should initially create your products in Lightspeed and then import them into WooCommerce. However you can send WooCommerce products that are already created and missing on the Lightspeed side to Lightspeed from the product detail page as a one-time initial setup step.

To do this, click the Sync with Lightspeed button in the Lightspeed Settings meta box on the right side:

Sync with Lightspeed button
Sync with Lightspeed button

This creates the product in Lightspeed with the following data points sent over:

  • SKU – this will show up under the “Custom SKU” field in Lightspeed
  • Images (gallery and single images are supported)
  • Inventory
  • Price – regular price and sale price are supported

After this the sync relationship defaults to Lightspeed being the source of truth. The WooCommerce product will not continue to send these values from WooCommerce to Lightspeed but will be managed by the Lightspeed side as long as the sync link is active. See the “Import and Sync” action for more information on sync links.

Note: The Lightspeed API only allows a max of 3 attributes for matrix items. If you are trying to sync over a WooCommerce product with more than 3 attributes, the plugin returns an error. We are still pondering over this. Developers, if you have any feedback we would love to hear it.

Manual Sync ↑ Back to top

You can trigger a manual product sync by either visiting your Lightspeed import page and using the “Update” function there.

Or by using the “Manual Update via Lightspeed” button located in the sidebar with each single product view in the WooCommerce backend.

Action Scheduler Jobs ↑ Back to top

Two recurring action scheduler jobs will be added once the plugin is active:

  1. wclsi_poll – this is the Poller that runs every 5 seconds to check for any changes in Lightspeed items such as inventory changes, image updates, and other generic updates like description changes.
  2. check_for_new_ls_prods – runs every 30 seconds and checks for newly created Lightspeed items

You can trigger these jobs manually whenever you’d like by going to Tools -> Scheduled Actions and click on the “Pending” category:

WooCommerce Lightspeed POS Action Scheduler Jobs
WooCommerce Lightspeed POS Action Scheduler Jobs

Relinking ↑ Back to top

Sometimes a WooCommerce product may lose its link to its corresponding Lightspeed product for various reason (e.g. a user error caused the Lightspeed product to be deleted from the Lightspeed import table).

The “Relink with Lightspeed” button re-establishes this link by looking up the Lightspeed product based off the SKU value using the following logic: if the Lightspeed product already exists in the Lightspeed import table, then it will try to re-establish the link there first, otherwise it will make an API call to Lightspeed and see if there are any products that match the SKU. If there is a match, then it will try and re-establish the link that way.

Relinking WooCommerce Products and Lightspeed Products

The “Relink with Lightspeed” button is located under the “Lightspeed Settings” metabox on the product page.

FAQ ↑ Back to top

Sync triggers ↑ Back to top

Products that are ticked to be synced will automatically trigger an inventory check with Lightspeed during the following events:

On the final step before checkout a last check is triggered. If the Lightspeed inventory is zero then the checkout process will be halted and an “out of stock” error should be displayed to your customer. If the quantity on the attempted order is greater than the quantity on hand, an error will also show saying there is not enough inventory.

Inventory changes in WooCommerce are also pushed to Lightspeed. For example, whenever an order is complete or inventory is added to a product, those changes are made in Lightspeed.

How is SKU synced? ↑ Back to top

The plugin will look at 3 SKU values in the following order:

  1. CustomSKU
  2. Manufacturer SKU
  3. System SKU

This means that if you have a value in CustomSKU, it will grab that one first, otherwise if that’s empty, it will use the Manufacturer SKU value, and lastly it will resort to the System SKU if both Custom SKU and Manufacturer SKU are empty.

Fatal PHP error Uncaught Error: Call to a member function set_status () on null 

If you see this error in your error logs or after the “Check for new Lightspeed Products” background job has run, then this means one (or more) of your Lightspeed products that was initially loaded as a single item was merged or changed to a variation product in Lightspeed, and it now is part of a matrix product. This means when it was first loaded to your Woo site, it had an “itemMatrixId” of 0. It now has a non-zero value, which means that plugin can’t find it since the plugin tries to find products based on both itemId AND itemMatrixId.

The solution here would be to try to find the culprit product either through logs or querying your database (or both) and deleting it from the Lightspeed Import Table or from your database.

Warning: a sync update for Lightspeed Product ‘ … ‘ has failed. The associated WooCommerce product is ‘ … ‘ We recommend to manually verify inventory levels and product properties in Lightspeed are up to date with what is set in WooCommerce. ↑ Back to top

If you see the notice above, it means a sync from WooCommerce to Lightspeed has failed. This can happen for a number of reasons, a common one is bulk updating products in the Products page. We do not recommend to do that as this can trigger a series of update calls to the Lightspeed API which will ultimately trigger a 429 errors. Other reasons could be that your store is incredibly busy and the large volume of orders and customer activity may also cause 429 errors.

Warning: there was an attempt to sync Lightspeed Product “<product_name>” with a negative inventory … ↑ Back to top

If you see the notice above, it means that your Lightspeed inventory changed for a product right after an order for it was created and the quantity on hand in Lightspeed is not enough to satisfy the order. Here is an example:

  • In Lightspeed, there is a “Banana” product with 4 units in stock
  • Customer A orders 3 units of product “Banana” through WooCommerce
  • At the same time Customer B orders 2 unit of “Banana” – now the quantity in Lightspeed is reduced to 2 — the order for Customer A can no longer be fulfilled!
  • The plugin asks Lightspeed for the quantity of “Banana”, but it’s still showing 4 since it takes a second or two for it to update
  • In WooCommerce, an order is created, and the plugin attempts sync the order inventory with Lightspeed which is now registering Banana as having only 2 units in stock.
  • The plugin is now trying to reduce the quantity of “Banana” by 3 units, which results in a negative value of -1 which is invalid

The plugin has checks before checkout to ensure that there is enough quantity on hand for any particular order, however if you have a busy store and a busy site, there may be instances where customers are buying the same product around the same time resulting in attempted negative inventory changes.

The best thing to do here is to manually adjust the order/inventory between Woo and Lightspeed as well as inform your customers of the issue.

To avoid this in the future, we recommend to set the “Out of Stock Threshold” to 2 or more.

Matrix variations are showing up as single products in WooCommerce ↑ Back to top

This can happen after a matrix product’s attributes in Lightspeed were changed which results in orphaned variation products. The best thing to do here is to archive the products in Lightspeed and delete them in WooCommerce (both the import Woo products as well as the ones in the Lightspeed Import Table page) and then re-load the products in Lightspeed Import Table page. You should then see just one matrix product with the variations consolidated into the “parent” product.

My product is “synced” but nothing is updating ↑ Back to top

This can happen if you archive a product in Lightspeed and then create a similar or “new” product to replace it. The plugin uses an internal ID to keep track of products and does not strictly sync on the SKU value. Even after archiving the original product, the plugin will still sync to that specific product even though it is archived. The best work-around for this is to either:

  1. Delete the Woo product and the record in the Lightspeed Import Page, re-load products, and import the “new” product that is not archived
  2. If you are using CustomSKU – delete this value (or slightly change it) on the archived product, for example you can add a “_archived” suffix “SKU1234_ARCHIVED” – then delete the product record in the Lightspeed Import Table in Woo. Finally, go back to the product in Woo and click on “Re-link with Lightspeed”. This will force the plugin to search for the product in Lightspeed using the SKU value in the Woo product and pull down data for the “new” product and set up a sync relationship.

I merged a product in Lightspeed and now it’s not syncing ↑ Back to top

Unfortunately the plugin does not support merging products as WooCommerce does not allow this. The best thing to do here is delete the Woo product and re-import or update the “parent” product the original product was merged with / into.

All products are added to the “Uncategorized Category” ↑ Back to top

The “uncategorized” is set because WordPress is taxonomy based and everything in WordPress requires a category- you can set the default category from uncategorized to something else in WordPress settings, read more here https://www.wpbeginner.com/beginners-guide/rename-the-uncategorized-category/.

Can we sync / import products selectively for example by category only? ↑ Back to top

This feature is on our roadmap but not available yet. If you know code and can develop customizations you can take a look at the https://github.com/rafdizzle86/woo-lightspeed-customizer.

Orders are not syncing inventory – the Order Thank You is stuck showing “Processing Products …” ↑ Back to top

The plugin uses JavaScript to sync order information after an order is created due to the API limits Lightspeed imposes on their API. Therefore if you have other plugins that have errors in their JavaScript, or there is some other JavaScript that may be interfering with the plugin’s JavaScript, then that runs the risk of breaking order inventory syncing.

To troubleshoot this, we recommend create a test order with a test product and go through the check-out process until you get to the “Order Thank You” page. Once you are there, we recommend to use Chrome Dev tools to inspect the page. With the Dev Tools window open, click on the “Console” tab. If you see any red JavaScript errors (especially ones referring to “wclsi-admin.min.js”) – then please send us a support ticket and we will immediately look into this. Here is an example of how the dev tools window looks like:

Lightspeed API Error – 403 Not Authorized – “To continue, please complete the CAPTCHA below” ↑ Back to top

This error can happen if your Lightspeed backend is locked via a pin and the account you used to connect your Lightspeed to WooCommerce falls under this restriction. Either remove the pin or use your full Lightspeed account for connecting your Lightspeed to your WooCommerce store.

Another reason this error can happen is due to Lightspeed’s Cloudflare firewall. We would recommend to read this article and coordinate with your hosting company and Cloudflare to resolve the 403 error.

Lightspeed API Error –  400 Cannot set attribute1 on an Item with ItemAttributeSet type Size ↑ Back to top

This is a bug in the Lightspeed API. Here is a response from the Lightspeed API support team explaining the bug in more detail:

We encounter this issue if the Matrix attributes were modified from a 2 attributes set to just one. Our developers are aware of this and they are working on a solution.

As long as your inventory is syncing, you can probably just ignore it.

What about fields like short and long description and shipping dimensions? ↑ Back to top

Lightspeed used to offer these fields in their free Web Store feature. This has been replaced by “eCom”. While these fields are still available to you upon request via Lightspeed support, we have confirmation that these might be removed in the feature. We recommend using WooCommerce only for entering your short and long description and measurements.

The error “curl error 6 could not resolve api.merchantos.com” or “ERROR: BAD LIGHTSPEED REQUEST: cURL error 28: Operation timed out” frequently come up. ↑ Back to top

This is most likely a networking issue and something that your hosting provider should be able to resolve for you see this blog post.

“Lightspeed API Error – 429 Rate Limit Exceeded: Please decrease your request volume. ↑ Back to top

The Lightspeed API imposes a limit of API calls, that your store may execute. In order to abide by this we use Javascript to distribute the amount of API calls of your store within the restrictions of Lightspeed’s API.

If you see the error “Lightspeed API Error – 429 Rate Limit Exceeded: Please decrease your request volume” than it is probably because either:

  • You have been using “manual sync” a bit too much in which case, slow down please ;).
  • Or you are syncing variable products with a lot of images and variations, which makes it difficult for our script to distribute your stores API calls evenly. In this case we recommend to remove the images and try again – image uploads are expensive API calls!

My Lightspeed is slow, not responding, not connecting. ↑ Back to top

If you experience continuous Lightspeed performance problem, it might be a good idea to also check the status of Lightspeed.

Do WooCommerce backorders get synced? ↑ Back to top

WooCommerce Backorders are not supported at the moment. We are investigating whether Lightspeed is able to handle this and if yes how we can implement this.

How is the price synced? ↑ Back to top

The WooCommerce product price is controlled and managed by what you set in Lightspeed as “Default” price. “Sale” prices can be synced as well. However be careful when activating the sale price on the Lightspeed side. Lightspeed will automatically fill in all “Sale” price values with what you set for “Default” prices. This means that on sync with WooCommerce, all of your WooCommerce products will have their “Sale” price value set. Prior sale prices you set in WooCommerce will be overwritten when you sync. This will not trigger them to go on sale in WooCommerce, but your WooCommerce sale prices will all get overwritten.

Lightspeed API Error – 404 Unknown PriceLevel Sale ↑ Back to top

Lightspeed by default does not have a Sale Price. You will have to set this up in order to sync these values back and forth between WooCommerce and Lightspeed.

In Lightspeed go to Settings >> Pricing levels.

Click on “New Pricing Level” and name it “Sale”. Exactly “Sale”.
Not “sale”, not “sales” or “Sales”. Please take note of our warning above for “How is the price synced?

The product count / amount in WooCommerce and Lightspeed are different. ↑ Back to top

While Lightspeed counts each Matrix item as one separate item, WooCommerce does not. It bundles together variable products as one thus the product count in WooCommerce and Lightspeed will be different if you use matrix products.

A previously imported product no longer shows up in the Lightspeed Import Page. ↑ Back to top

For this we recommend deleting the WooCommerce product instance and removing it from the recycle bin. After this simply re-import from Lightspeed.

Does WooCommerce Lightspeed support [fill in plugin name]? ↑ Back to top

Not at the moment. Please see our section on integrations for more information.

The Sync says Pending… ↑ Back to top

This indicates that no syncing of data has been performed from Lightspeed to WooCommerce but is scheduled. Trigger a manual update if you do not want to wait. Every item that is newly imported will be set to pending sync status, until there was an inventory update.

The plugin is not syncing eComm fields like short description, long description, and dimensions ↑ Back to top

Short description, long description, and product dimensions will not get synced over unless you have the legacy “Web Store” feature enabled in Lightspeed. If you do have it enabled, you will find these fields under the “Web Store” section under the product page:

As far as we know, eComm images will not automatically get synced over to Retail, we recommend to reach out to Lightspeed support and see if there is an easy way to move product images (and maybe other properties) from eComm to Retail.

How do you update product photos? ↑ Back to top

The photos are pulled in from Lightspeed upon import. You can change them on WooCommerce but they won’t synchronize back to Lightspeed because of the nature of the sync scenario. However if you change them on Lightspeed and select the “Update” action, then photos should be updated on your WooCommerce store.

How can I update product categories? ↑ Back to top

Right now category updates are only imported once. We currently do not support category updates but this feature is on our roadmap.

Does this integration support multiple Lightspeed stores? ↑ Back to top

Yes. This integration has been improved to support multiple LightSpeed stores. Even though you can import products from different stores, inventory syncing will only occur across one store – most likely the first store that is listed in the Lightspeed settings page.

Does this work with Lightspeed Retail? How about other versions? ↑ Back to top

Yes, this integration works with the Retail cloud-based product only. It does not work with Lightspeed Onsite (server based) or Lightspeed Restaurant (does not integrate with WooCommerce). Additionally this extension does not support Lightspeed eCom, all eCom features must be unavailable.

Can I duplicate / copy products using a plugin or WooCommerce? ↑ Back to top

No. This feature is not supported. Please import or create the product in WooCommerce anew instead.

Does Lightspeed connect and sync automatically to the same WooCommerce product upon import if it is already created in my WooCommerce store? ↑ Back to top

No. Lightspeed will not automatically detect the “right” product in your WooCommerce store because of the nature of a 1-way-sync scenario. Upon import a new WooCommerce product will be created. Instead you should either delete the WooCommerce product and then import & sync from Lightspeed.

What happens when there’s a change (e.g., stock) in my Lightspeed account? ↑ Back to top

Unfortunately Lightspeed’s integration does not send notifications whenever there are changes in a Lightspeed account, so there’s no way for your WooCommerce store to know immediately if a product’s data has changed, or if a Lightspeed store has been deleted or a new one added, for example.

However, this plugin has implemented polling (constant checks) against Lightspeed’s API to make sure that critical values such as inventory are up to date before a customer checks out on your WooCommerce store.

Do sales and WooCommerce order data get synced to Lightspeed? ↑ Back to top

No, this extension sync product and inventory data only. WooCommerce order data is currently not supported but it is something we hope to implement in the near future!

What’s the best way to request a feature for this plugin? ↑ Back to top

You can send us your feature request via our WooCommerce Lightspeed Ideas Board Section.  Our developer checks there frequently and popular requests get turned into features from time to time, so do drop us a line. We also try to monitor and reply to as many threads as we can.

Please do keep in mind though that customisations are not supported and your idea can take a long time to implement. If you need a customization fast, we encourage you to hire a dedicated WooExperts or Codeable developer. Visit our Customizations page for help determining if your project is better suited for Codeable or WooExperts.

What’s the best way to test this plugin? ↑ Back to top

Lightspeed allows you to test their Retail POS offering for free via a 14-day trial. We recommend to sign up for the free trial in conjunction with setting up a test WooCommerce store to see if this plugin meets your business needs.

Are there any tutorials for Lightspeed available? ↑ Back to top

Sure, apart from there documentation found at: https://retail-support.lightspeedhq.com/hc/en-us (pick Getting Started or Retail Desktop to begin) – There are also some videos on Vimeo available. They are:

What is the maximum amount of action the auto sync can perform? Can I change 1000 items at once? ↑ Back to top

The auto-sync feature can handle 100 changes every 5 seconds as a maximum workload. If you need to batch edit a lot of items, you need to break it down into steps of 100 (better make that 95 for good measure). Keep in mind that each edit count as one action. Editing a handful of variation in matrix items will therefore trigger multiple actions in the amount of your total single edits.

How do I fix a duplicate product ID or SKU? ↑ Back to top

WooCommerce has a couple of methods in place to make sure, all SKU’s are unique but this can fail sometimes. Especially multi language plugins may  circumvent this on purpose. An example error message will look similar to this WordPress database error: [Duplicate entry '1234' for key 'item_id']

Here is a plugin that you can try to remove duplicate SKU values from your database. As always do take a database backup before running such methods.

SKU Error Fixer for WooCommerce

I have created all my products in WooCommerce already. Can I bulk import my products from WooCommerce to Lightspeed? ↑ Back to top

Our plugin is designed with Lightspeed as the source of truth. You can only bulk send products from Lightspeed to WooCommerce not the other way around. This is also to prevent overloading the API.
What you can do is to look into importing the products via CSV. That might be faster than manually creating the items.


Are refunds in WooCommerce synced to Lightspeed ↑ Back to top

Currently there is no automatic inventory sync. After you have refunded an order in WooCommerce you need to manually restock your Lightspeed inventory.

Troubleshooting ↑ Back to top

Logs ↑ Back to top

Under WooCommerce -> Status -> Logs there are two log files that the plugin automatically generates for you:


Captures general sync data that is pulled and pushed to/from Lightspeed.


This log captures exceptions/errors and is very helpful to check on the health status of the plugin.

Database Structure ↑ Back to top

The following tables are installed upon activation (with wp_ being the prefix):


wp_wclsi_items stores most essential info such as:

  • id a general item id to identify a product within the WooCommerce Lightspeed plugin tables.
  • item_id the item id used by Lightspeed.
  • wc_prod_id the post id used by WooCommerce. NULL if product has not been imported to WooCommerce.
  • wclsi_import_date shows date and time of the import. NULL if not imported.
  • wclsi_last_sync_date shows date and time of the import. NULL if never synced.
  • wclsi_is_synced shows 1 if a product has an active sync link to Lightspeed from WooCommerce. NULL if product is not linked from WooCommerce to Lightspeed.
The “Last updated”: information on the WooCommerce Lightspeed import page pulls info from date and time info that is set in the Lightspeed account. Not from the local server, not from WordPress.
Developers: This makes querying datasets simpler. For example:
SELECT * FROM wp_wclsi_items WHERE wc_prod_id IS NULL
gives you all products in your WooCommerce store that are not linked to a Lightspeed product.

Software Requirements ↑ Back to top

These software settings are required to run WooCommerce Lightspeed without issues.

  • PHP 7 or higher,
  • MySQL 5.6 or higher,
  • PHP Max Execution time of 300s or higher.

You can use this plugin: WP-Serverinfo to check your environment settings.

For editing PHP parameters, please see this blog post.

Current Release ↑ Back to top

See the changelog for full details.

If you have current issues please open a support ticket with us, to access the most current development version which fixes outstanding issues.

Read before updating ↑ Back to top

  • The most important step is to take a full backup. You must be prepared to rollback using a backup. Test your rollback first, before you update! An untested backup might still leave you stranded.
  • Your sync links and all other data prior to the update will be preserved. However we recommend three important steps besides a backup: testing, testing, testing. If you need assistance, please open a support ticket with us and we will guide you through the update process.

Integrations ↑ Back to top

General ↑ Back to top

All releases of this plugin get tested thoroughly with the current WooCommerce and WordPress version at the time of the release. No other plugin combinations are tested, therefore you should not assume automatic integration with other plugins. Here is a list of missing integrations that are frequently requested:

Missing integrations ↑ Back to top

  • GoDaddys inhouse plugins seem to be not compatible with the upcoming 1.4.3 release, they must be disabled.
  • This extension is not WordPress Multisite compatible.
  • This extension does not support Windows server. Use on Windows on your own risk.
  • This extension does not support WPML.
  • This extension does not support Archive, Layaway or backorders.
  • This extension does not support custom taxonomies of any kind. For example: WooCommerce  Brands and Lightspeed Brands are not supported. We recommend to setup Brands as categories instead.
  • Multiple stores can be read but are not supported for syncing data. If you have multiple Lightspeed stores, you must designate one of them as your primary store that the plugin will use to read inventory values from as well as sync inventory values to.
  • This extension does not sync sales data. Only inventory changes are sent. WooCommerce order data is not sent over.
  • Product Vendors  is not supported.
  • Lightspeed eCom is not supported.
  • Caching is not supported. Any Varnish, object or other cache must exclude all WooCommerce product pages, cart and checkout.

Filter and Action Hooks ↑ Back to top

Note: This is a Developer level section. If you are unfamiliar with code, filters and hooks, and resolving potential conflicts, select a WooExpert or Developer for assistance. We are unable to provide support for customizations under our  Support Policy.

Lightspeed POS has been extended to support filters and actions that you can hook into. This allows for better customization. For example: You want the Update action to only update the inventory field and not override other fields such as title and content.

Note that this requires some technical and coding knowledge. More at WooCommerce Lightspeed Hooks.

Questions & Support ↑ Back to top

Have a question before you buy? Please fill out this pre-sales form.

Already purchased and need some assistance? Get in touch the developer via the Help Desk.

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