On my site registrations are managed by RSMemership. An user chooses 2 of the 10 newsletters to subscribe to with custom field.
In acymailing I therefore find the user who is not subscribed to any default list but has filled in a custom field where he has specified the 2 newsletters to subscribe to.
Is there an automation that controls the custom fields of acymailing and if a user has chosen the custom field "a" then he is automatically subscribed to the newsletter "a"?