Beyond simply validating Rich Pins, how would you diagnose and resolve a situation where Rich Pin data is not correctly updating on existing pins after changes to your website's metadata?

If Rich Pin data isn't updating on existing Pins after metadata changes, begin by re-validating the URL using Pinterest's Rich Pin Validator to ensure the new schema markup is correctly implemented and recognized. If the validator shows no errors, the issue likely lies with Pinterest's caching or data refresh process. First, use a URL inspection tool (like Google's) to ensure the updated metadata is crawlable and indexable. Next, manually 'scrape' the URL with a tool like Facebook's Sharing Debugger; this can sometimes trigger a refresh of the metadata. If issues persist, use Pinterest's API (if integrated) to force a refresh of the pin's metadata. As a last resort, contact Pinterest support, providing examples of the pins not updating and the steps taken to troubleshoot. Pinterest's system may have internal issues preventing the update, or the URL might be inadvertently blocked from being re-crawled.