We've installed SharePoint 2010 SP2 Enterprise using the MSDN key. For some reason, I thought I could easily change it later. However, to my horror I've learned that I cannot do it.
So, the question is this: Can I leave this key as soon as the customer actually paid for the license? What if the customer is audited? Will be there any problems with the key? Or MS does not care about it as soon as you paid?
P.S. We don't want to do anything that is not supported by MS like chaining the key in SQL, etc.