If your app is not working properly in Microsoft Teams, this error message might appear in your Console log.
Check your Entra Admin Center to see if the "00000003-0000-0ff1-ce00-000000000000" application is listed. It should be enabled by default, but it might not be in your tenant.
To verify this, you'll need to be a Global Admin. Follow these steps:
1. Go to the Microsoft 365 Admin Center and open the Entra (Identity) Admin Center:
![](https://portal.lightningtools.com/hs-fs/hubfs/image-png-Aug-28-2024-06-10-29-4430-PM.png?width=303&height=226&name=image-png-Aug-28-2024-06-10-29-4430-PM.png)
2. Open the App Registrations:
![](https://portal.lightningtools.com/hs-fs/hubfs/image-png-Aug-28-2024-06-11-26-2475-PM.png?width=313&height=221&name=image-png-Aug-28-2024-06-11-26-2475-PM.png)
3. Switch to the All Applications tab:
![](https://portal.lightningtools.com/hs-fs/hubfs/image-png-Aug-28-2024-06-12-00-6934-PM.png?width=453&height=106&name=image-png-Aug-28-2024-06-12-00-6934-PM.png)
4. Click on the SharePoint Client Extensibility Web Application Principal to open its information page:
![](https://portal.lightningtools.com/hs-fs/hubfs/image-png-Aug-28-2024-06-12-32-4373-PM.png?width=1445&height=212&name=image-png-Aug-28-2024-06-12-32-4373-PM.png)
5. Select "Expose an API" from the menu:
![](https://portal.lightningtools.com/hs-fs/hubfs/image-png-Aug-28-2024-06-12-52-7937-PM.png?width=370&height=105&name=image-png-Aug-28-2024-06-12-52-7937-PM.png)
6. In the "Authorized client applications" section, check if the '00000003-0000-0ff1-ce00-000000000000' application is listed. It should be listed by default.
7. If it doesn't exist, you'll need to manually create this via "Add a client application".
8. Re-test the issue.
Published July 5, 2024