You can send your offline conversion events to Facebook directly using the offline conversions API or by connecting with a partner integration.

To use the offline conversions API, you must have a Facebook Business Manager, a Facebook app, a Business Manager system user and access token generated for that system user, and an offline event set. To learn more about the requirements and to get started, go to the Offline conversions API documentation.

You can also find a list of available partner integrations and learn how to use your customer system to enable offline conversion tracking.

If you're unable to use the API or a partner integration, you can also upload offline event data from the Offline events page in Business Manager.

* Nguồn: Facebook