For most practical applications it is necesary to use ABAP code to facilitate tasks such as:

defaulting field values
back-end (SAP) validations
determining approvers
updating master data and/or performing SAP transactions

For this it is necessary to create an "Implementing Class" which is a subclass of /IQX/CL_FORMS_BASE_CLASS. This can be generated in the Properties or Form Life-Cycle dialog of the workbench.

Step-by-step guide

From the Properties

Click on
Provide the Implementing Class name and click on to create and activate the class
Click

From the Code (Form Life-Cycle)

Click on
Provide the Implementing Class name and click on to create and activate the class
Click

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