How to check before upgrade forest function and domain function level

%3CLINGO-SUB%20id%3D%22lingo-sub-2022785%22%20slang%3D%22en-US%22%3EHow%20to%20check%20before%20upgrade%20forest%20function%20and%20domain%20function%20level%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2022785%22%20slang%3D%22en-US%22%3E%3CP%3EWe%20have%20windows%202012%20r2%20and%20forest%20function%20is%202008%20R2%20%2C%20domain%20function%20is%202008%20R2.should%20check%20what's%20conditional%20to%20can%20upgrade%20to%202012%20r2%20for%20both%20forest%20and%20domain.our%20environment%20has%20sharepoint%202019%20%2C%20dynamic%20crm%202015%2C%20exchange%202013%20%2C%20adfs%202012%20r2%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-2022785%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EActive%20Directory%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EWindows%20Server%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2023374%22%20slang%3D%22en-US%22%3ERe%3A%20How%20to%20check%20before%20upgrade%20forest%20function%20and%20domain%20function%20level%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2023374%22%20slang%3D%22en-US%22%3E%3CP%3EI'd%20check%20domain%20health%20is%20100%25%20as%20first%20step.%20(dcdiag%20%2F%20repadmin)%20As%20to%20other%20product%20I'd%20try%20asking%20in%20dedicated%20forums%20here.%3C%2FP%3E%0A%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fanswers%2Ftopics%2Foffice-sharepoint-server-itpro.html%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%22%3Eoffice-sharepoint-server-itpro%20-%20Microsoft%20Q%26amp%3BA%3C%2FA%3E%3C%2FP%3E%0A%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fcommunity.dynamics.com%2Fcrm%22%20target%3D%22_blank%22%20rel%3D%22nofollow%20noopener%20noreferrer%22%3EMicrosoft%20Dynamics%20CRM%20-%20Forums%2C%20Blogs%2C%20Support%3C%2FA%3E%3C%2FP%3E%0A%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fanswers%2Ftopics%2Foffice-exchange-server-itpro.html%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%22%3Eoffice-exchange-server-itpro%20-%20Microsoft%20Q%26amp%3BA%3C%2FA%3E%3C%2FP%3E%0A%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fanswers%2Ftopics%2Fadfs.html%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%22%3Eadfs%20-%20Microsoft%20Q%26amp%3BA%3C%2FA%3E%3C%2FP%3E%0A%3CP%3E%26nbsp%3B%3C%2FP%3E%0A%3CP%3E%26nbsp%3B%3C%2FP%3E%0A%3CP%3E%26nbsp%3B%3C%2FP%3E%0A%3CP%3E%26nbsp%3B%3C%2FP%3E%3C%2FLINGO-BODY%3E
Regular Contributor

We have windows 2012 r2 and forest function is 2008 R2 , domain function is 2008 R2.should check what's conditional to can upgrade to 2012 r2 for both forest and domain.our environment has sharepoint 2019 , dynamic crm 2015, exchange 2013 , adfs 2012 r2

1 Reply

I'd check domain health is 100% as first step. (dcdiag / repadmin) As to other product I'd try asking in dedicated forums here.

office-sharepoint-server-itpro - Microsoft Q&A

Microsoft Dynamics CRM - Forums, Blogs, Support

office-exchange-server-itpro - Microsoft Q&A

adfs - Microsoft Q&A