Home > PowerApps > Power Platform | Office 365 Outlook Connector | REST API is not yet supported for this mailbox

Power Platform | Office 365 Outlook Connector | REST API is not yet supported for this mailbox

Other while importing a solution from market place, I had to create a Office 365 Outlook connection to complete the setup.

However got following “REST API is not yet supported for this mailbox” error while creating the connection.

Reason and fix:

Error could be because of 2 reasons

  • Missing valid license
    • Troubleshoot this by logging to https://outlook.office.com/. If you could connect, then the issue might not be with license.
    • But if you get an error similar to below while logging to https://outlook.office.com/, its because of missing a valid license.
    • Ask your Admin to grant the User with either Office 365 or Azure Active Directory Premium license.
UTC Date: 2022-10-18T09:30:08.758Z
Client Id: xxxxxxxxxxxxxxxxxxxxx
Session Id: xxxxxxxxxxxxxxxxxxxx
Client Version: 20221006031.10
BootResult: configuration
err: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasNoMailboxAndNoLicenseAssignedException
esrc: StartupData
et: ServerError
estack: Error: 500
    at f (https://outlook.office.com/mail/:341:261409)    at https://outlook.office.com/mail/:341:269776
st: 500
ehk: X-OWA-Error
efe: xxxxxxxx, xxxxxxx
ebe: xxxxxxxxxxxxxx
emsg: UserHasNoMailboxAndNoLicenseAssignedError
  • Missing ‘Mail Box’ configuration
    • Make sure a Mailbox is configured for the user

🙂

Categories: PowerApps Tags: , ,
  1. No comments yet.
  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: