Workspaces with names that have characters different than numbers and latters cannot be linked in Azure Portal
Let's say you've created workspace with name 'Stan-test55' via the OMS Portal. Later when you open the Azure Portal (portal.azure.com) and try to link that workspace you cannot. The name is in red, no exact error appears what is wrong. See screenshot. I've tried to create a new workspace trough the Azure Portal directly and when you try to enter name it says that only numbers and letters are allowed. Seems there are differences in the logic of creating workspaces trough the different Portals. This could result into issues with customers.