If you received the following error message in response to your workflow, this article can help you troubleshoot possible causes:
"Why it failed:
This action may have failed for one of the following reasons: User recently restored from a suspended or deleted state; delegation was created in gmail and is in a pending state.
Please check if this user was recently restored from a suspended or deleted state, or if the delegation is currently in a pending state in Gmail."
In this case, the action in your workflow may have failed for one of following reasons: the user in question was recently restored from a suspended or deleted state, or the delegation pairing belonging to this user was created in Gmail and is in a pending state.
User was Recently Restored from a Suspended or Deleted State
If a user was recently restored from a suspended or deleted state (within 30 minutes to an hour) Gmail can sometimes require this additional time to return to full functionality, and during this time certain email related tasks may fail.
To audit any records of a user being recently restored to an active state, please navigate to admin.google.com > Reports > Admin, enter "User Activation" in the left side "Event Name" field, and click "Search":
Delegation is Pending in Gmail
If a delegation invitation was created in Gmail by the target user, but left by the invitee in a pending state, Google prevents BetterCloud from deleting these inactive pairings.
To audit any pairings in this state, you must have direct access to the target user's Gmail inbox. Navigate to the gear icon in the top right corner, select "Settings", and then the "Accounts" tab. Scroll down to "Grant Access to your account" and delete any "pending" or "expired" pairings: