Did you ever find a solution? I have tried all I can think of.
Topic summary
Persistent Google Publishing errors: products marked as custom in Shopify repeatedly require GTIN (Global Trade Item Number) or MPN (Manufacturer Part Number), affecting hundreds of items. Toggling the “custom product” setting temporarily clears errors, but they recur, making manual fixes impractical.
Conflicting status reports: some see products marked “not published” in Shopify while the Google app shows them published; others confirm products appear in Google Ads despite Shopify errors.
Responsibility dispute: users report Shopify attributes the issue to Google and vice versa, with several experiencing the problem for months.
Shared workarounds and updates:
- Completing channel verification resolved loading for one user.
- Checking Google Ads/Merchant Center products directly can confirm visibility despite Shopify errors.
- A YouTube fix link was shared and received positive feedback; the video is central to the suggested solution.
Open questions: no reliable bulk method to mark items as custom; no confirmed permanent fix or root cause.
Status: ongoing, no official resolution; some users find partial relief via verification and the linked video.