KB0001 – Class inheritance
PromentaWebflow uses SAP ABAP Object Oriented model for delivering functionality to users. Webflow has a clearly defined inheritance hierarchy whereby key elements of the framework are delivered in the core (base) classes and solution classes (such as vendor request, customer request) inherit the functionality.
Since Basis 7.4 SAP have made a small change to the class inheritance functionality such that some core functions no longer work.
NOTE : This solution only applies to a customer’s specific developed classes (eg Z_ classes). All /PROMENTA/ and /PRMNTCUS/ namespace classes are already corrected.
Enter customer (Z) class name and press change
Click on the Friends tab
Enter the class name /PROMENTA/WEBFORM_BASE
Save and activate