At the moment, the Shopify Connector for Dynamics 365 Business Central does not have error handling on Product Sync (Creation in BC). As an end user, BC Items may not be created, and the error message is only available using VS Code debugger.

The Shopify Products page should have an Error Message field, like Shopify Orders, so that users are able to handle errors in product creation without being dependent on BC Developers.

The hidden error message is stored in variable ErrMsg: Text in codeunit 30185 "Shpfy Sync Products"