A customer has imported some completion data that, after the fact, was found to have been incorrectly formatted.
We're looking for a way to delete the evidence that was created from this import and have so far been unsuccessful.
I can see that it was mentioned in T-12494 and in a discussion thread here but I cannot see any mention of how/where the feature actually exists or how it works.
The discussion thread seems to be talking more about the course completion editor which, as far as I can tell, doesn't do what we need.