I have admin rights to our Azure DevOps server and I manage projects, user access etc..
Recently I got a request to add users from external domain to a project in a collection. I know the process to add users from external domain to projects in Azure DevOps services, but how do I do it, incase of Azure DevOps server, I don't see options such as policies in collection settings, like we see policies option in organization settings in Azure DevOps services.