We introduced the Action concept to simplify the experience for Citizen Developers to consume APIs without coding (no-code). An action reflects a single operation or method of an API, but hides the complexity from the users.
Supported API types: REST, OData (limited)
Here a high level overview how you would work with Actions in SAP Process Automation.
Add and configure a BTP destination to connect to the backend of your API - recommended but optional for Action Editor (you can use URLs to test the Action) - mandatory for using the Action in SAP Process Automation