Hi - if you change your filter to "incomplete tasks" you will be able see which task is the issue. There could be a few things going on so not sure exactly, but that has helped me in the past. :)
If it was a request, you would see it in Open Issues, so my guess is that it is a task that might be 100% complete but the status didn't change.
That's definitely a frustrating one. Couple other things you can check -
After that, try telling the project to Recalculate Timeline, sometimes that works. At that point, I'm out of tricks and Support might need to take a look at it with you.
Hi @Nakea Fuller‚
It seems all tip has been already commented, but I also agree that it is hard to pin point what is remained to close before closing the project. May be Workfront can give a pin pointed reason to find the cause easily.
Had this issue today with an open project. It was showing 100%, no requests, but still getting the Job cannot be marked Completed if there are open requests and tasks that are not complete message. Frustratingly one task was not yet completed yet the project showed 100%. Was looking all over the place until I finally saw that.