good day.

What should I do and what consequences there if I change the account under which the installation of the console ForeFront for exchange took place.

that permits should I watch for a new account?
What steps should I do to make the change of the account?

Hi,

Please check the table summarizes necessary permission requirements for FPSMC of Permission part in the article below.

https://technet.microsoft.com/en-us/library/gg507706.aspx

Best Regards,

Joyce