Open Graph URL not matching canonical issue means that a specific URL has its Open Graph microdata pointing to an URL that is different from the one set in canonical.
The importance of the issue
The social media will use the URL set in og:url. It is important in order not to mislead a user when generating a Facebook card .
How to check the issue
You can use any browser to check the issue. Open the source code of the flawed page To do this, click the right mouse button at any spot of the page and choose “browse the code” option, or apply an online tool https://codebeautify.org/source-code-viewer.
The source code must contain <meta property=og:url content=”https://site.com/”/>, а content must have an URL that is set as canonical for the current page at <link rel=”canonical” href=”https://sitecheker.pro/”>. It is considered to be the best practice of directing a user to the main page version and combine data such as likes to publish them with the same URL.
How to fix this issue
Change URL in Open Graph tags to the one that canonical tag contains.
Detect pages where Open Graph not matching canonical
Crawl the website to collect all pages where Open Graph URL not matching canonical URL