When a property value is merged or deleted, or if the internal value is edited, any workflows that enroll based on that value will show an error:

This is because the workflow is trying to use a property value that no longer exists.
You can fix this error by updating the enrollment criteria:
- In the workflow editor, click the Enrollment trigger box.
- In the right panel, locate the trigger with the error, then click the trigger to edit it.

- Remove the property value that's causing the error by clicking the x next to the filter.
- Click Update filter.
- Click Save.
The workflow will no longer show an error for the enrollment trigger.
workflows