The alert "This workflow has already been applied to this trip" means the workflow is still on the trip. It's listed on the trip's Workflows tab.
To apply it again:
Open the trip's Workflows tab.
Click the three dots next to the workflow and choose Remove. This removes the automations and incomplete tasks it added. Completed tasks stay.
Apply the workflow again. Every task in it is created fresh as incomplete, including ones you'd already completed.
Deleting the workflow's automations or tasks one by one doesn't clear the alert while any of them, including completed tasks, are still on the trip. Use Remove instead.
Why a workflow you applied isn't on the Workflows tab
A trip's Workflows tab lists only workflows owned by the trip owner. Any other workflow still applies its tasks and automations to the trip, but it does not get a row on the tab.
That covers two cases:
You applied a workflow from Shared with me or Tern Community to your own trip.
You are a collaborator, and you applied a workflow from your own library to someone else's trip.
If a collaborator applies a workflow owned by the trip owner, it does appear on the tab.
Because these workflows have no row on the tab, the "This workflow has already been applied to this trip" alert does not fire for them. Applying one twice stacks duplicate automations.
Removing duplicates from a workflow with no row
Go to the trip's Automations tab and delete each duplicate automation. This stops future emails from those automations.
Go to the trip's Tasks tab and delete the duplicate tasks.
To confirm what was applied and when, go to the trip's Activity tab.
This works on both web and mobile. If you can't locate the duplicates or they reappear, email [email protected] and we'll clear them for you.