[Bug]: Current Mailbox permissions tab does not show Send on behalf

[kris6673]

Required confirmations before submitting

• I can reproduce this issue on the latest released versions of both CIPP and CIPP-API.
• I have searched existing issues (both open and closed) to avoid duplicates.
• I am not requesting general support; this is an actual bug report.

Issue Description

Full access and send as shows up fine, but send on behalf, seems to broken. I think it might be because the send on behalf shows uses the identity field/GUID, and not the UPN like the send as and full access does?

1. Grant send on behalf rights to a user for a shared mailbox, either via powershell or CIPP.
2. Update the page and the rights does not show up.
3. Test via powershell "Get-Mailbox -Identity [email protected] | Select-Object Name, GrantSendOnBehalfTo" and the accounts will show

Powershell shows this:

CIPP shows this:

Environment Type

Sponsored (paying) user

Front End Version

7.2.3

Back End Version

7.2.3

Relevant Logs / Stack Trace

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