If your Vendor Portal URL is not loading or is giving a 404 error message, please refer to the following steps to make sure the app proxy has not been changed in your Shopify account
Step 1
Click "apps" in your Shopify sidebar, then select "App and Sales Channel Settings."
Step 2
Click the ellipsis for "Vendor Consignment."
Step 3
Check to make sure the app proxy has not been changed from "/apps/vendor-portal/"
If this does not resolve the issue with your Vendor Portal link please reach out to our support team for further assistance.