A new Issue Details Page (IDP) is being rolled out in Google Merchant Center, designed to simplify how advertisers diagnose and resolve account or product issues.
Accessible from the “Needs attention” tab, the IDP consolidates issue overviews, suggested actions, business impact metrics, and affected product samples.

For applicable violations, merchants can request reviews directly from the page, streamlining troubleshooting and improving account management.

Read the help page, found by Hana Kobzová, about this feature here: About the Issue Details Page.