Set sender address when inviting users via graph API

Question

I set up a Graph API call from within Salesforce to invite guest users to the Azure Directory. It all works fine, aside from one little thing:

The Graph API sends the invite with my email address (system admin). I would like to use a generic account (like ******@company.com or ******@company.com). The Graph API seems to have no means to provide a sender address. Do I need to create a generic API user with such an email address and select this user as the Owner of the registered app in Azure?

If I do so, will I be able as a Global Administrator to still manage the App Registration entry?

Answer 1

As far as I know GRAPH API allows you to set the sender address and the from address - see https://learn.microsoft.com/en-us/graph/api/resources/message?view=graph-rest-1.0

To send as a shared mailbox you can use something like this:

POST https://graph.microsoft.com/v1.0/users/******@contoso.com/sendMail