I am currently playing with Microsoft Graph Api for groups. When I access the group conversations(https://graph.microsoft.com/v1.0/groups/3b41ffb2-4fec-4ca6-97f8-40c70eb75df3/conversations) through API Explorer(https://graphexplorer2.azurewebsites.net), it works fine. But if I access the same through Postman I receive the below error.
{
"error": {
"code": "ErrorInternalServerError",
"message": "The SMTP address has no mailbox associated with it.",
"innerError": {
"request-id": "20289ba7-0782-4d0e-9ea9-64e4567bfca6",
"date": "2016-01-13T13:05:21"
}
}
}
But in Postman below APIs are working fine.
https://graph.microsoft.com/v1.0/groups/3b41ffb2-4fec-4ca6-97f8-40c70eb75df3
https://graph.microsoft.com/v1.0/groups
In the Azure AD application created for testing purpose, I have also enabled all the permissions for Graph API and Azure AD rights. I am unable to proceed further.