The Modern Retail Lightspeed integration uses Lightspeed's Item IDs (sometimes referred to as "Integration IDs") to identify individual products. These IDs are necessary for the integrator to function; without them, Lightspeed can't know to respond to the orders we're sending. In this article, we'll talk about what we use item IDs for, and where they're located.
Modern Retail uses Lightspeed's Item IDs for individual products simply because Lightspeed won't accept, or properly update, orders without those IDs. Lightspeed uses those IDs to identify which product has been sold on an order, and then to update inventory. Trying to use another value in place of an item ID (like a SKU for example) would result in orders not being accepted by Lightspeed. You can locate the item ID in the URL for a given product page inside of Lightspeed, as seen below:
In the above screenshot, the Item ID is the highlighted number in the URL: 11867. This is the pertinent value for us & and your integration.
By default, we get these IDs from Lightspeed as part of the integration process, so you shouldn't have to worry about them. If you have any additional questions, please feel free to get in touch with us with a support request.