Assume that the BizTalk Server, SQL Server and BizTalk groups are in a domain and all the users like BizTalk Admin, host users and login users are in a different domain. In this situation, BizTalk server configuration may fail with error.
Failed to check if <Domain>\<Group> is a valid domain group.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This problem is fixed in the following cumulative update for BizTalk Server:
Cumulative Update 1 for BizTalk Server 2020
For information about the service packs and cumulative update list for BizTalk Server, see the following article in the Microsoft Knowledge Base:
2555976 Service pack and cumulative update list for BizTalk Server
For more information about BizTalk Server hotfixes, see the following article in the Microsoft Knowledge Base:
2003097 Information about BizTalk hotfixes and Cumulative Update support