Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
Token exchange fails specifically on Mobile Clients with AADSTS50013
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Lienl
185
Reputation points
I have developed a custom Microsoft Teams Tab application using the Teams Toolkit (v5.x) and Teams JS SDK v2.19. The Single Sign-On (SSO) flow works seamlessly on both the Teams Desktop and Web clients.
However, when the same Tab is accessed via the teams mobile the silent authentication fails during the On-Behalf-Of (OBO) token exchange. The client-side getAuthToken() successfully retrieves a bootstrap token, but our backend service rejects it when attempting to swap it for a Graph API token.
Is there a known difference in the Token Audience ?
Microsoft Teams | Development
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