I´ve built an SPFx Webpart, which requests a SharePoint list via the Microsoft Graph. It works fine in both SharePoint and as a Microsoft Teams Tab. However, when I try to run it in Teams as a personal App, I always get an error 403 forbidden.
As a debug measure, I followed a Microsoft tutorial on making a simple graph call https://docs.microsoft.com/de-de/sharepoint/dev/spfx/use-msgraph. After trying the webpart in both SharePoint and Teams again, I ran into the same issue. It works both in SharePoint and as a Teams tab, but not as a Teams personal app.
public render(): void {
this.context.msGraphClientFactory
.getClient()
.then((client: MSGraphClient): void => {
// use MSGraphClient here
// get information about the current user from the Microsoft Graph
client
.api('/me')
.get((error, user: MicrosoftGraph.User, rawResponse?: any) => {
console.log(user);
this.domElement.innerHTML = `
<div class=${styles.container}>
<h2>${user.displayName}</h2>
</div>
`;
if(error) {
console.log("Error: ");
console.log(error);
}
});
});
}
As the last test, I downloaded an already made and functioning project which requests data via the Microsoft Graph https://github.com/pnp/sp-dev-fx-webparts/tree/master/samples/react-teams-personal-app-settings, and it returned the same error.
Additionally, the global admins in our tenant have no issue using these apps as a Microsoft Teams personal App. The problem only occurs for standard users.
Does anyone know why this web part won't work as a personal app but anywhere else, and also how to fix this issue?
18.11.2020: Quick update about the problem: After an admin granted all the permissions again, all the apps now works in the teams web client as a personal app, but still not in the desktop app as a personal app.
Another update about the problem: I tried installing Teams in Linux as a test, and as it turned out, all the apps work as Teams personal apps there.
