Hello,
Thank you for contacting Rank Math today.
This data is used in the knowledge graph and the local SEO and is completely optional. If your site uses a custom app for sharing posts or other functionality then you can add the APP ID on this option but if you do not have any functionality that requires an app then you can skip this field.
Looking forward to helping you. Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.