Migrating Sharepoint site with the Sharepoint UI dashboard in On Demaand Migration (ODM) and we get this error:
"This site is a Group site. Migration of a Group sites is not supported if the corresponding Group site does not exist already on the target O365 tenancy. Please create the Group site on the target first then retry migrating this site"
And/or:
Sharepoint site members not being migrated even though Sharepoint files did get migrated.