Hi Emmanuelle
It seems you did really read my post
“It seems the shopify app for google shopping is not pushing products through to google merchant centre because its requesting a GTIM or MPN when we dont need one.”
products are not appearing in google merchant centre so there are no products for me to check errors on. Once they expire they are not being refreshed.
Obviously not having them in merchant centre means they do not feed through to Google ads either.
Its a google channel app issue that doesnt seem to be refreshing the feed into merchant centre.