Meta (Conversions API)
Find your Pixel ID and Conversions API access token in the Meta Events Manager.
For Facebook and Instagram you need the Pixel ID (also called the "Dataset ID") and a Conversions API access token. You can find both in the Meta Events Manager.
Open the Events Manager
Sign in to the Meta Events Manager with the account that belongs to your ad account. In the left-hand menu under Data sources, select the appropriate pixel or dataset.
Copy the Pixel ID
The Pixel ID is a 15- to 16-digit number and is shown directly beneath the name of the data source. Alternatively, you can find it under Settings → Details.
Generate an access token
Open Settings for the selected data source and scroll to the Conversions API → Set up access token manually section. Click Generate access token and copy the token that appears.
The access token is tied to a system user. If that user is deleted or restricted in the Business Manager, the token becomes invalid and must be regenerated.
Then enter the Pixel ID and access token in the dashboard under Settings → Integrations and check delivery in the Live Stream.