Accidently cancelled initiative

Summary:

We have a course that had 2 initiatives assigned to it and the admin cancelled one of them. Unfortunately, the wrong initiative was canceled and all of the learners that were in an active status on the course have now been withdrawn.

Has this ever happened to anyone? What did you do to fix it?

It seems that through Mass Action we can "Activate Assignment", which is great. However, we also need to recreate the initiative that was cancelled.

Would it be best to create the new initiative and then "activate assignment" for those that were withdrawn? Or should we activate assignment and then recreate the initiative?