Kartra to Facebook Custom Audience error

[pnidoc]

Howdy. I'm trying to add a new Kartra customer to a Facebook custom audience via a tag but am getting:

(#2650) Failed to update the custom audience: This audience was created from data source EVENT_BASED.PLATFORM, which does not support data source FILE_IMPORTED.MULTI_HASHES

...as a response when I click the "Send and save" option. Can you explain the error?

 

[Pabbly]

The above error occurs because Facebook Custom Audiences won't let Pabbly Connect add emails unless the Custom Audience was created by Pabbly Connect itself. This error is telling us that the selected Custom Audience wasn't created by Pabbly Connect, but by another platform or via manual upload.

How to fix it -

1. Create a custom audience via Pabbly Connect first.

2. Then add a user to that custom audience created in the above step.