Expression operators are used to execute custom logic expressions, which are defined in the Value/Exp field. Logic expressions, which cannot use variables or If statements, are simpler than logic functions. Except for |CURVAL|, expressions do not have built-in parameters. For expressions, you do not need to assign a value to RESULT.
Expressions execute faster than logic functions. The FDM Lookup function can be used within expressions, as it is used within logic functions. To write a custom expression, double-click the Value/Exp field to open the expression editor.
The function above uses the FDM Lookup function to add two source accounts to the value of the logic account. Notice that the CURVAL parameter can be used within expressions, as it can within logic functions, except that, with expressions, CURVAL must be enclosed in pipes.
(|CURVAL| + |000,10,09/30/01,810|) * 100
The function above uses the FDM Lookup function to add a source account (810) and a source account from a specified center, FDM category, and FDM period to the value of the logic account and then multiplies the resulting sum by 100.