Feature request - compatibility with Akeeba Loginguard

But which trigger should I then use for the code action ? The user must be redirected right after entering the correct token code from the sms. The session variable for the redirect url after correct token is entered is called: com_loginguard.return_url

Got this answer from Loginguard developer:

There is no event in LoginGuard after Two Step Verification is complete for obvious security reasons.

So I believe what I want is not possible.

The session variable for the redirect url after correct token is entered is called: com_loginguard.return_url

Then that is what you'll need to change in a Code action with Method set to PHP. You'll need to use Joomla API to change that session variable or I guess set it. You'll likely have to do that incredibly early like on Joomlas before login event. I don't know if that'll even work though as again I'm not the developer of Akeeba LoginGuard so I've no clue how it works.