[SOLVED] Auto-Action Acymailing doesn't seem to work from Users trigger?

OnAfterUserLoginSuccess does not have a user object unless you set User to User. The onAfterLogin trigger provides a user object. Please try either usages.

Ok, so now there is no more error message, so far so good.
It still doesn't subscribe the user though.

Seams to be working fine on the onAfterLogin trigger using latest AcyMailing. Is the newsletter it self within AcyMailing enabled? Please try creating a new newsletter list then try subscribing to it to see if that works as the API usage it self appears working fine in my tests.

I found the culprit.
There is a setting in each list:
View/Subscription Access
I had set it to None.
I don't want people to be allowed to sign off the list themselves, as it's a payment reminder if they haven't payed yet.
So what setting should I set it for the Users trigger?

The user needs to be able to access the newsletter I assume for the API to subscribe them to it. I assume if you don't want them to manually subscribe/unsubscribe from it you'd set "Visible" to "No" for that newsletter in AcyMailing.