We are developing and hosting an app which is being used by users from another tentant. We invite them one by one as needed, but they should essentially all have access.
This appoach is now getting tedious and time consuming.
Is there a way to provide access to all the users in the other tenant in one go, without sending invitations or knowing individual email addresses, by giving access to a domain group of theirs or some other "wildcard" method?
An alternative, but less attractive, approach could be to provide an easy way the users to invite others from their tenant - by letting them input an email address in a form within the app perhaps.