Hello Thomas!
I am facing a data problem (Not performing automatic item updates for price). I checked and unfortunately I did not find structured data, the data “Price and availability of the item was not found”.
The problem is that https://schema.org/ (microdata) is not installed or installed incorrectly on your site. Please correct the semantic markup of the pages on your site. What’s it click here About structured data markup for Merchant Center - Google Merchant Center Help
How to add semantic markup to the site click here Set up structured data for Merchant Center - Google Merchant Center Help
Schema.org microdata can be tested in the structured data validation service https://search.google.com/structured-data/testing-tool/u/0/.
Structural data guidelines can be found here https://developers.google.com/search/docs/guides/sd-policies?hl=en
Sincerely,
Denis