Combination of Funding Programs

Hi guys,

I know that AWS has many different Funding Programs such as MAP, CEI, POC,.etc. Thus, my question is can we combine these funding programs at the same time for a customer? For example, if we find a new customer that is eligible for Greenfield customer, and then this customer would like to migrate workload to AWS with ARR less than 250k and would like to do the POC first how can we combine these funding programs effectively? I hope you guys and help me explain this question.

Thanks, Steven