@Marvin When I setup an automation that triggers and action. If I have more than one action, are they ran in parallel or sequentially, i.e. Runs Action 1 first , if succeeds, then runs Action 2

In Prefect 3.x, when you set up an automation with multiple actions, they are executed in parallel, not sequentially. This means that all actions will be triggered simultaneously once the trigger criteria are met, and they do not depend on each other’s success or failure. For more details, you can refer to the Prefect documentation on automations and triggers.

@Marvin How about in Prefect 2.20.16?

In Prefect 2.20.16, when you configure an automation with multiple actions, they are also executed in parallel, not sequentially. This behavior is consistent with Prefect 3.x, where actions are triggered simultaneously once the trigger criteria are met. For more information, you can refer to the Prefect 2.x documentation on automations.