Creating actions

You create an action to define reusable logic that accepts parameters and performs side effects without returning a value.

Procedure

Click the Add button next to Data model and select Action from the drop-down list.
Replace the default action name with a descriptive name. It is recommended to use a singular form for the function name.
Optional: Define a documentation property using the Documentation text field. This documentation is visible in the prediction menu in the rule editor.
Define the input parameters for the action:
1. Click Add + in the Input parameters section.
2. Enter a suitable name for the parameter. It is recommended to use a singular form for the parameter name.
3. Associate the parameter with a data type that you select from the Type drop-down list.
4. Optional: Identify the parameter as a list by checking List. When a parameter is identified as a list, it can have multiple values.
5. Optional: Edit the default verbalization of the parameter.
6. Repeat for other parameters.
Optional: Click the Verbalization placeholder to edit the default verbalization of the action and edit it directly in the pop-up window that opens.
The default verbalization is based on the name of the action. You can revert to the default verbalization by clicking Reset.
Define the body of the action:
1. Select the type of action that you want to define:
  - BFL expression for a simple expression that returns a value.
  - BFL code block for complex logic that requires multiple statements.
2. In the editor, write the action logic by using the Business Function Language (BFL).

Example: code block to reject a loan with a message

The following example demonstrates a simple action that rejects a loan application and sets a custom rejection message:

loan does not get approved ;
set the message of the loan to message ;

This 'reject' action is constructed with two input parameters: a loan object and a message string.