Some possible reasons for the error could be:
Incorrect Data Formatting:
-Email Hashing: When mapping email addresses for activation, AEP expects the data to be in a specific format. If you are using hashed emails, they should be hashed correctly using SHA-26, which is a common requirement for destinations like Facebook. If the email data isn't correctly hashed or the hashing isn't applied correctly, Facebook will reject the data. (Link to documentation) - Apple Transformation Toggle: Double-check that the Apple Transformation toggle is correctly applied and that it's performing the expected SHA-256 hashing on the email address.
Data quality issues:
- Ensure that the data that you have is clean, meaning that the email addresses are properly formatted, free of duplicates, and not empty. A poor data quality can lead to issues during activation.
Destination Configuration:
- Incorrect target field mapping: Ensure that the target field in Facebook is set up to accept hashed emails and that the mapping aligns with Facebook's expected input format.
- Permissions and API Access: Verify that you AEP setup has the required permissions and API access to send data to
Facebook.
- For more info read here Facebook destination issues:
- Temporary Service issues: It could happen, Facebook's API could be experiencing temporary issues, causing a "400 Bad Request" error. If everything seems correct on the AEP side, it will be worth it to try the activation again.
- For more detail you can read documentation
here
To troubleshoot it and resolve the error you can try and perform de following steps:
Validate the Mapping configuration: Double- check that the email is properly hashed according to the destination's requirements. Specific instructions on configuring identity fields can be found
here.
Review AEP logs and APIS responses: Use the AEP UI or API to inspect detailed logs for any error related to the activation. The logs might provide further insights about what went wrong. More information attached
here.
Once performed all this steps, if the error persists contact Adobe Support for further assistance opening a ticket.
¡Hope this is helpful!
Regards,
Celia