Postman Collections
To see what is going on, import the postman collections as described here:
https://github.com/microsoftgraph/microsoftgraph-postman-collections
Demo:
Application: Get App Only Access Token
Application: Get Users
On Behalf of a User: Get User Access Token
Get Presence status of a specific user
This request does not exist in the postman collection, you have to create a new GET request as below:
URL: https://graph.microsoft.com/beta/users/{{users_id}}/presence
Authorization: Bearer token using the variable: {{UserAccessToken}}.
For more details about the MS Graph Get preseence for multiple users, please see https://docs.microsoft.com/en-us/graph/api/cloudcommunications-getpresencesbyuserid?view=graph-rest-1.0&tabs=http