My customer is facing the following issue: when a guest (Email address removed) opens a team via the webbrowser or the Teams App and clicks a Yammer App Tab the guest is displayed an error stating something went wrong.
The guest has access to the Microsoft Teams Team
The guest has access to the specific Yammer community.
The guest can access the Yammer community via web.yammer.com.
The guest can acces the Team (via browser or app).
Domain users (e.g. Email address removed) can succesfully click on the Yammer tab in the team so that the Yammer Community is visible in Teams.