Is there a way to have training assigned a second time?

Summary:

We want to reassign training to about 900 people, but 800 of them have already taken the training.

Content (required):

We have a training that needs to be assigned for almost a thousand people. but about 800 of them already took the training once in our prior LMS. Since the migrated completion shows at the course level, we attempted to assign at the offering level instead. The system withdrew all 800 people with a reconciliation withdraw. This course is not a regularly repeated course. It just needs to be taken again this time. We know we can do this with the new limited availability enhancement, but we don't have that just yet in production. Is there any other way