The Miro OAuth flows shows a page on which the user can select the team to which Miro should be installed. Afterwards, the code (and subsequently the access_token) is provided.

Yet, the flow can be only executed once because the “Installed” button isn’t clickable.

This means, in case the application looses the Miro access-token (which I understand from the docu should be cached forever), the user is required to deinstalled the application from Miro and then trigger again the OAuth flow.