Most RecentMost ViewedMost LikesUsing Yammer REST API with the New Yammer Yammer has changed the format of the IDs that we use for communities, users, threads, and topics. This change corresponds to a shift on our backend from a REST API structure to a GraphQL structure. Using MSAL with Yammer Groups API Starting December 1 2020, Yammer Groups API endpoints will only support the usage of Azure Active Directory tokens. Microsoft recommends using Microsoft Authentication Library (MSAL) and AAD tokens with the Yammer API.