Analytical Application Infrastructure User Guide Data Management Framework User Defined Functions Modifying the User Defined Functions Modifying the User Defined Functions This option allows you to modify Type, Function Arguments and Return type of the User Defined Functions. To modify the User Defined Functions: From the User Defined Functions Summary window, select the UDF and click Edit from the toolbar. The User Defined Functions Registration window is displayed. Modify the required details.For more information, see Creating User Defined Functions (UDFs).