is there a limit to the number of points that can be transferred FOR A RESERVATION in a year?

i have read several account of many 100,000's transferred- even over a million in a few cases on the marriottinsider message board. over the past days i've been told anywhere from 100,000 per year to 500,000 per year maximum (the 500,000 was from a manager, but he couldn't tell me where this was written- ergo it seems as though he was making it up. And now another manager is telling me that the maximum from 1 account is 100,000 points/year with a maximum of 500,000 received in a year, from a minimum of 5 accounts. I told the manager that i know people who have transferred and received transfers of over a million points at one time and the manager told me the people are exaggerating because it's impossible.

ideas? I'm platinum and talking to platinum managers.