Invalid VariantInventory ItemID - Product Sync Issue

This usually occurs when the latest product data has not been downloaded from the sales channel before the synchronization process.

1). In Webgility, navigate to Integrations> Stores> Advance Settings> Application tab> clear the last download date for both Online Store items and Quickbooks items> Save and Close.

2). Now select Products> All Products for POS/Quickbooks> click on refresh and wait for the process to complete. Once done then go to All Products for the sales channel in this case Shopify> click on refresh and wait for the process to complete.

4). Once done try to sync the items again.

NOTE: For shopping carts that do not support item download from scratch, you can just clear the last download date for QuickBooks items and directly go to the item download for both the sales channel and QuickBooks as mentioned in point no 2.

Feel free to let us know if you have any other issues or questions.