Is it possible to get the list of all the users that can access a Planner plan without having our users to grant the GroupMember.Read.All scope?

Question

To give more context to the issue, we have a Planner integration where we sync Planner plans to our platform. While we can see some members in the sharedWith property of the /details endpoint, the property does not include all of the members but, from my experience, only the ones that have interacted with the plan at least once, and groups linked to this plan (which are not useful without the GroupMember.Read.All). Is there any other way in which I can get this information? I'm sure that the sharedWith property included all of the users in a plan, even if they did not interact directly.

Answer 1

Have you tried to target the assignedLicenses Property? Please note that it is only returned using $select. This lists users assigned to a particular license and you will need the SKU id. https://learn.microsoft.com/en-us/graph/api/resources/user?view=graph-rest-1.0#properties

Example of sample request:
https://graph.microsoft.com/v1.0/users$select=id,mail,assignedLicenses&$filter=assignedLicenses/any(u:u/skuId eq chjdj-14ab-586c-4d350-a certain SKU id1d46) 

Permissions Required Listed here: https://learn.microsoft.com/en-us/graph/api/user-list?view=graph-rest-1.0&tabs=http#permissions You can try this first using Graph Explorer.