Hi @MuriloFe1 ,
As far as I know, Custom Actions in Adobe Journey Optimizer (AJO) are used to send data from a journey or campaign to external communication channels or systems.
From what I understand, you can send a collection of messages together using a Custom Action — though there are some limitations depending on how the journey is set up and how the payload is structured.
You may want to take a look at the following documentation, which explains how collections work within journeys and how to configure custom actions:
https://experienceleague.adobe.com/en/docs/journey-optimizer/using/orchestrate-journeys/journey-use-...
https://experienceleague.adobe.com/en/docs/journey-optimizer/using/configure-journeys/action-journey...
I hope this helps!
Kind regards,
Parvesh
Parvesh Parmar – Adobe Community Advisor
https://www.linkedin.com/in/parvesh-parmar/