Auto Actions onBeforeFirstLogin

Hi, I have a question.

I want to automatically add a user to a usergroup depending on existing usergroups.
A new user signs up, his data are saved and he will be put in the usergroup "Registered" (ID=2).
During the first login I want to add the user to another usergroup.

So I have made myself an autoaction:
Trigger is "onBeforeFirstLogin".
Condition is "[var1_gids] equal to "2".
Action is something.

My question now is: Is the [var1_gids] the correct way to determine if the user is only in usergroup 2, i.e. Registered?

Thanks!

You don't need a condition. Instead under Global set Access to the usergroup you want to specifically match.

Thanks for support.
However, I think that your method is different from my method:
My method: The AA fires only if the user is assigned to only this usergroup and not to any others.
Your method: The AA fires if the user is a member of that user group regardless if he is member of any other usergroups or not.
Is that correct?
For my purpose I would like to verify that the user is only in that specific user group.
This seems to work with [var1_gids] equal to "2".
Is that the correct way, to use the [var1_gids]?

For my purpose I would like to verify that the user is only in that specific user group.

That's exactly what the Access parameter will do. What you're currently doing is executing the action on every user that logs in then conditioning them. That's unnecessary as you can already condition them down to the specific usergroup using the Access parameter. The action for sure would only execute on the selected usergroups. You can add additional conditions from there as necessary.

Is that the correct way, to use the [var1_gids]?

No, you need to use an IF substitution condition to properly check against usergroup or viewaccesslevel inline. See the bottom of the substitutions tutorial below.

www.joomlapolis.com/documentation/279-community-builder/tutorials/18353-using-substitutions-throughout-cb

I did some tests and
[var1_gids] equal to "2" does exactly what it says: Only if the user has exactly one usergroup (2) the auto action will fire. If he is member of multiple user groups including 2 then the AA will not fire.
Using the user group access parameter he AA fires if the user is a member of that user group regardless if he is member of any other usergroups or not.
So I need the condition [var1_gids] equal to "2".
However, I can do a pre filtering using the user access parameter as you suggest, that is true. Maybe I'll do that.
So I will need to set both, the user access parameter and my condition.

You need it to fire if they have only that usergroup or simply have that usergroup? If you mean only that usergroup then yes a your condition will be fire, but as you've seen it will not fire if they've any other usergroups where the Access parameter will as it's just checking that they have the selected usergroup.