It's common for a business to use multiple channels to communicate with its customers, e.g., a website, a mobile app, and Messenger. When a person uses Facebook Login on a website or a mobile app, an ID is created for the specific Facebook app, which is called app-scoped ID. When a person interacts with a business via Messenger, an ID is created for the specific Page associated with the bot in Messenger, which is called Page-scoped ID. This means, for the same person, the IDs across different communication channels are different. Keep in mind, app-scoped IDs are created when a user logs on with your app, so you won't see app-scoped IDs for users that haven't installed, and signed in with, your app.
A business may want to provide a seamless experience for people across different channels. For example, when someone is communicating with a business through a bot in Messenger, the experience could be more personalized if the business recognizes that the person is an existing customer in their Facebook app (e.g. a website or mobile app with Facebook Login). We provide an API for retrieving IDs for the same person across apps and bots in Messenger that are owned by the same business.
First, you must let Facebook know that your apps and the Pages associated with your bot in Messenger are owned by the same business entity. To do this you will need to use Meta Business Manager to:
Then you can query the ids_for_apps
edge or ids_for_pages
edge for the user node in order to retrieve IDs.
Your initial call to the API may trigger an app review that can take approximately 48 hours to complete.
This document covers:
There are a few primary use cases for this API:
ids_for_apps
GET /{user-psid}/ids_for_apps ?access_token=[page_access_token] &appsecret_proof=[appsecret_proof]
GET /{user-psid}/ids_for_apps ?app=10152368852405295 &access_token=[page_access_token] &appsecret_proof=[appsecret_proof]
ids_for_pages
GET /{user-asid}/ids_for_pages ?access_token=[app_access_token] &appsecret_proof=[appsecret_proof]
GET /{user-asid}/ids_for_pages ?page=380374449010653 &access_token=[app_access_token] &appsecret_proof=[appsecret_proof]
ids_for_apps
GET /{user-asid}/ids_for_apps ?access_token=[app_access_token]
GET /{user-asid}/ids_for_apps ?app=10152368852405295 &access_token=[app_access_token]
ids_for_pages
GET /{user-psid}/ids_for_pages ?access_token=[page_access_token] &appsecret_proof=[appsecret_proof]
GET /{user-psid}/ids_for_pages ?app=380374449010653 &access_token=[page_access_token] &appsecret_proof=[appsecret_proof]
GET /{user-asid} ?fields=name,age_range,ids_for_apps,ids_for_pages &access_token=[app_access_token]
{ "name": "John Smith", "age_range": { "min": 21 }, "ids_for_apps": { "data": [ { "id": "10152368852405295", "app": { "category": "Business", "link": "https://www.facebook.com/games/?app_id=1419232575008550", "name": "John's Game App", "id": "1419232575008550" } }, { "id": "645195294", "app": { "link": "https://apps.facebook.com/johnsmovieappns/", "name": "JohnsMovieApp", "namespace": "johnsmovieappns", "id": "259773517400382" } } ], "paging": ... }, "ids_for_pages": { "data": [ { "id": "12345123", // The psid for the user for that page "page": { "category": "Musician", "link": "https://www.facebook.com/Johns-Next-Great-Thing-380374449010653/", "name": "John's Next Great Thing", "id": "380374449010653" } } ], "paging": ... }, "id": "645195294" }
GET /{user-psid} ?fields=name,is_payment_enabled,ids_for_apps,ids_for_pages &access_token=[page_access_token] &appsecret_proof=[appsecret_proof]
{ "name": "John Smith", "is_payment_enabled": true, "ids_for_apps": { "data": [ { "id": "10152368852405295", "app": { "category": "Business", "link": "https://www.facebook.com/games/?app_id=1419232575008550", "name": "John's Game App", "id": "1419232575008550" } }, { "id": "645195294", "app": { "link": "https://apps.facebook.com/johnsmovieappns/", "name": "JohnsMovieApp", "namespace": "johnsmovieappns", "id": "259773517400382" } } ], "paging": ... }, "ids_for_pages": { "data": [ { "id": "12345123", // The psid for the user for that page "page": { "category": "Musician", "link": "https://www.facebook.com/Johns-Next-Great-Thing-380374449010653/", "name": "John's Next Great Thing", "id": "380374449010653" } } ], "paging": ... }, "id": "645195294" }
The API may only be used by a business to connect the IDs for that business's app or Page to another app or Page owned by and maintained on behalf of the same business. For example, service providers may not use the API to support multiple customers.
For potential violations of this policy, your API requests will be subject to a review and return an error message “(#200) Your business is currently going through review to access this API.”