Hello!
We created automatic actions that send emails when a task is moved from one project stage to the other. However when the email needs to be sent to certain users (we can't find the pattern), we get this message:
The operation cannot be completed: another model requires the record being deleted. If possible, archive it instead.
Model: Activity (mail.activity)
Constraint: mail_activity_user_id_fkey
please notice that at no point we are deleting something, and the automatization is correct because it works perfectly with some users. Are we doing something wrong?
