I'm trying to add a custom field to the email quick campaign wizard form to no avail. Interestingly, this field was available for use in the classic view of D365, yet since our recent migration over to the new UI, this custom field fails to display in the quick campaign wizard. And even more intriguing, the custom field is on the form and supposedly visible, yet it does not appear. The Email entity is enabled for the Unified Client.
Thanks in advance for any thoughts and/or help.