I can see some other threads asking the same question about adding Systeme.io to your list of integrations. I want to transfer e-mails from an external landing page into Systeme.io using my Pabbly Connect account. I await your rapid feedback. Thank you.
As of now, we don't have the action events for the Systeme.io integration that you're asking for. (Action events mean pushing data into Systeme.io application)
For providing action events, Systeme.io needs to provide us with API access which they currently do not seem to have. In the future, once the release API, we should be able to provide action events as well for the Systeme.io integrations.
Hope the above information helps. Please let us know if we can help you with anything else.