It is unlikely that the account that I'm using to call Graph API doesn't have adequate permissions, but whenever I modify proxyAddress property of a Office 365 Group, I receive the following error,
{
"error": {
"code": "Authorization_RequestDenied",
"message": "The requesting application is not authorized to set group proxy addresses.",
"innerError": {
"date": "2022-01-17T12:01:39",
"request-id": "328be4b4-eb20-483e-adf7-bb02dfae3be2",
"client-request-id": "cabb604f-b315-be14-9ba0-9b0571ba7b1b"
}
}
}
If I PATCH without modifying the proxyAddress property at all, then I don't get this error, but whenever I modify the payload for proxyAddress at all, I get this error.
Example, PATCH:
{
"proxyAddresses": [
"SPO:SPO_269b2269-296d-43f4-b67e-88b6f32a7fcd@SPO_af6dd7da-54b5-411e-bab8-0b31f96e9e42",
"smtp:twg35@lincdev.com",
"SMTP:twg35aaa@lincdev.com",
"smtp:twg35@linc.onmicrosoft.com",
"smtp:twg35aab@lincdev.com"
]
}
I can change other properties and I can successfully set proxyAddress when I create the group, but updates always fail with error. Also, I've tried updating the mailNickname property and this has no effect. I can also update this value from the Office 365 Admin UI by modifying the email (primary / alias) and accomplish exactly what I'm after.
Can someone confirm that this isn't possible via Graph API or can you confirm / help me with the process or permission to accomplish this?