Why is the @InvocableMethod annotation recommended for Apex actions?

The recommendation to use the @InvocableMethod annotation for Apex actions primarily stems from the increased functionality and ease of implementation it offers. When an Apex method is annotated with @InvocableMethod, it allows the method to be called from various Salesforce processes, commonly within Flow and Process Builder. This enhances integration capabilities, as developers can create reusable components accessible from these declarative tools.

Using @InvocableMethod simplifies the interaction between Apex and low-code solutions by providing a standardized interface for invoking Apex methods, which can accept parameters and return results in a format that is understandable by Flow and other automation tools. This capability not only streamlines development but also allows for greater flexibility in designing complex automation without having to write extensive Apex code.

Furthermore, with @InvocableMethod, Salesforce processes can leverage the powerful functionality of Apex while maintaining a user-friendly interface, allowing system administrators and other users with little coding expertise to implement powerful processes effectively. This built-in integration further emphasizes the annotation's contribution to creating scalable and maintainable Salesforce solutions.