Products on Amazon are pulled into QuickBooks Commerce only after you set up the integration. For example, if there are new products added on your Amazon seller central account or QuickBooks Commerce (after integration), you will need to manually create the product or variant on the other platform with a matching SKU.
Here are 3 ways to link variants to Amazon:
Go to the Inventory tab > Products > Variants. On the right-hand side of each variant field, you will see a drop-down box marked with an arrow. Click it and choose Link to Amazon.
Link in bulk
The process is very similar to the above however for this option, check the box the left-hand corner with an arrow to select all your variants.
Next, click on the drop-down that reads Bulk Actions (All Selected) and choose Link to Amazon.
Link via CSV upload
If you have too many variants from different products that you need to link across, this would be the best way for you.
Go to the Inventory tab, click on the drop-down that reads Bulk Manage at the top right-hand corner and choose Update Existing Products.
On your next screen, choose the option 'No, I need to download a list of my products'.
Click on Sales Channels and choose your respective Amazon store. Then, proceed to Build Product Sheet.
Download and open the CSV generated file. Under the Amazon column, mark the variants as TRUE to link.
To complete the sync, re-upload the CSV file and your variants will now be linked successfully.