Thanks that's only part of the truth , so I had it actually figured out first , a patch to the fieldgroup with the payload:[ { "op": "replace", "path": "/meta:intendedToExtend", "value": [ "https://ns.adobe.com/xdm/context/profile", "https://ns.adobe.com/xdm/context/experie...

I want to use a fieldgroup across profile and event schemas but when I try to add the fielgroup to the schema I get:"detail": "Cannot use fieldgroup https://ns.adobe.com/XXXXXXX/mixins/c445e3013b1ba4074b990b321805ad8892b56646923c2f21 because it is intended for schemas based on the following classes:...

Adobe provides other fields in the Personal Email , aren't these required for the feedback from the journey, so if you create a custom field group you need fields with the same names as those provided out of the box so for instance the status updated if there is a failure reported from the MTA?