getCallbackTokenAsync returns a token for the user account instead of the shared mailbox

[CodeCube0]

I’m using Office.js to access a shared mailbox in an Outlook add-in. After opening the shared mailbox, I called the getCallbackTokenAsync method to obtain an authentication token, but the returned token appears to be associated with my personal mailbox instead of the shared mailbox.

Steps to reproduce the issue:

1.	Access a shared mailbox using Office.js.
2.	Call getCallbackTokenAsync.
3.	Notice that the returned token is for the user’s personal mailbox rather than the shared mailbox.

Expected behavior:

I expect getCallbackTokenAsync to return a token for the shared mailbox I accessed, so I can authenticate actions specific to that mailbox.

Actual behavior:

getCallbackTokenAsync returns a token associated with my personal mailbox instead of the shared mailbox.

Additional questions:

Is there a way to specify that the requested token should be associated with the shared mailbox? Alternatively, is there a configuration or workaround to achieve the desired behavior?

Thank you for your assistance.

Let me know if this works for you!