I have problem in microsoft teams android app.

[Qudoos98]

I have successfully joined meetings or channel on microsoft teams desktop App by email or link.
But when I try to join a meeting or to join a channel on my microsoft teams android app I couldn't, Why?
I have tried many times but every time a message comes that " you are joining a meeting of an organization that you are not part of it"
The organizer of meeting or channel has already added me as guest in his/her meeting or channel.
I am also sharing pic of that message

[#2]

You need to switch to that organisers tenant first. Are you logged into Teams in Android using the same account you use at the Desktop version?

Tenant switch is not always required but it does help in some cases. And especially with channel meetings you should tenant switch before joining.