Find My Fbid -

If you encounter a technical issue, Facebook support might ask for your ID to locate your account in their system.

If you are contacting a game or app developer, they often require an app-specific ID rather than your global FBID: find my fbid

: Switch into your Page, go to Menu > Your Page Name > Transparency and privacy policy to see the ID. If you encounter a technical issue, Facebook support

: Using the Facebook Graph API to pull data for web development projects. If you encounter a technical issue