You can have multiple MDM servers in your Apple Business Manager account.
Can you have 2 management profiles on Iphone?
You cannot install multiple MDM profiles as that would defeat the security purpose of the MDM profile/server. Contact you IT department.
How do I add management profiles to my Iphone?
Go to the Settings app and tap Enroll in < organization name > or Profile Downloaded. If neither options appear, go to General > Profiles & Device Management> Management Profile. If you still don’t see a management profile, you may need to download it again. Tap Install.