It might seem quite obvious but it's not.
My question is how to change backup policy for particular VM, which is already configured to use another policy in the Recovery services vault?
Just to be clear, we're talking about Azure VM backup. So I can't add VM to Associated items of another policy, because It's already configured with the first one.
My thoughts to resolve this:
Stop backup for the VM, retain data. Configure backup again, but now with different policy. This would show some errors in backup alerts as the backup will be stopped.
Any though how to resolve this in more elegant way?