Home - Cloud ERP Extensibility
In the preceeding exercise we have extended the behavior of the based RAP BO by adding a determination, a validation and a side effect.
We will now adapt the CDS data model, that means we will add new fields to the Shop entity.
Compared to the activities for adding additional behavior this is a larger amount of work since the complete stack of CDS views has be extended rather than only extensing the behavior definition (BDEF).
In order to extend the data model of a RAP BO the base RAP BO must be enabled to support extensibility as described in the Online Help.
RAP Extensibility-Enablement For your convenience the generated RAP BOZRAP630R_ShopTP_###that has been prepared for your convenience supports the extensibility of the data model.
As shown in the schematic view above we have to extend the following objects of our extensible base BO.
| Order of extension | Repository object name | Name | Comment |
|---|---|---|---|
| 1 | ZRAP630SSHOP_### |
Extension include | extends active and draft table with additional fields |
| 2 | ZRAP630E_Shop_### |
Extension include view | selects from (extended) active table |
| 3 | ZRAP630R_ShopTP_### |
Restricted base view | selects from (2) |
| 4 | ZRAP630C_ShopTP_### |
CDS projection view | selects from (3) |
| 5 | ZRAP630I_ShopTP_### |
Interface view | selects from (3) |
| 6 | ZRAP630R_Shop_D_### |
Draft query view | selects from (extended) draft table |
While for SAP BTP ABAP Environment and for SAP S/4HANA Cloud ABAP Environment there is an extension field wizard available.
In SAP S/4HANA 2023 you have to create the extension objects for the objects mentioned above manually.
Therefore we have to different how-to-guides depending on the type of ABAP system you are working on.
Continue here when working in SAP BTP ABAP Environment or SAP S/4HANA ABAP Environment:
Exercise 3 - Add a field with the field extensibility wizard
Continue here when working in an on premise or private cloud SAP S/4HANA 2023 system :
Exercise 3 - Add a field manually
You have now added a single editable field to your extensible RAP business object.
In the next execise we will show how to add an action.
Continue to - Exercise 4 - Add an action