What is the main purpose of the action nodes in an action flow?

The main purpose of action nodes in an action flow is to execute actions and control the flow of the application logic. Action nodes are fundamental components within the OutSystems environment that perform specific operations, such as calling APIs, manipulating data, executing business logic, and controlling the sequence in which the actions occur.

By using action nodes, developers can define the steps that the application should take, ensuring a structured and logical progression through the workflow. This allows for effective management of processing tasks and the overall behavior of the application, making them essential for building functional applications in OutSystems.

The other options, while related to application functionality, do not encapsulate the primary role of action nodes. For example, displaying information to users, gathering user inputs, and creating data models are important aspects of application development but are addressed through different components and mechanisms outside of action nodes in the action flow.