Hello,
I recently activated several segments to a Facebook Destination account, and I am seeing a large number of identity failures.
I do have several non-identity email & phone number source fields mapped to their respective target fields for the destination. Would this be causing an issue? All of my source data is in the proper format for activations, I do know there is a composite key within our Email identity map, so I expect some errors from this. Additionally, will RTCDP activate all emails for a profile within the Identity Maps?


TLDR summary of questions:
- Can I map multiple source fields to the email & phone target fields?
- Will all values for a profile within the "IdentityMap: Phone_E.164" & "IdentityMap: Email_LC_SHA256" namespaces distribute to the Facebook destination?
- Is there a way to get more details to why identities failed, other than the brief description?
Thank you for the help and guidance.