My application have been audited, and I have the same experience.
Although in my application I provided the name of my department manger, for the audit, my line manager confirmed the hours as the functional manager was in long vacation.
So, it can be anyone in the team, but I advise you to approach one with reasonable position in the organization or reasonable authority in the project.
If you were to get audited does it have to be your manager that confirms your projects and project hours,
or
can it be someone that was part of the project team you led?
My managers no longer work for the company, I do not know how to reach them.
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