Introduction

In On Stack extensibility, Enhancements can be created using Custom Logic App in Key User Extensibility.

Key user extensibility also know as In App extensibility, extensions can be added with key user tools.

Key User Extensibility / In App Extensibility- Custom Logic

Custom Logic is one of the Key User Extensibility Tools                        

In the Custom logic App, 

Custom logic can be addedEasy exploration of extension points, key user documentationSyntax check, syntax highlighting, code completionDraft, published, testing includedABAP Language Version for Key UsersEnhancements can be created using Custom Logi App

Business Accelerator Hub

SAP Business Accelerator Hub provides a section for On Stack extensibility (key user extensibility and developer extensibility), to know list of SAP CDS views, APIs, Business Add-ins etc. are available with the release status.

Navigate to Business Accelerator Hub to find BAdis

On Stack Extensibility -> Business Add-ins

Search for required BAdi.

This BAdi is related to check purchase order before saving to create it.

Here it shows BAdi Definition and Enhancement spot.

BAdi can be used in both Key User and Developer Extensibility as both states of BAdi is in released state.

Methods and its Parameters

Steps to Create Custom Logic

Navigate to Custom logic App

Custom Logic App

Choose Create button to create Custom Logic.

Choose Required Business Content

List of available BAdi Definitions for the business context.

Choose required BAdi Definition.

Its Documentation.

Choose Step 2 to add Implementation Description and ID.

Implementation ID automatically appears based on Description and it can also be changed.

Choose Review

Choose Create

Click on Publish button.

Its published.

Click on Open Code Editor to write the logic.

Importing Parameters.

Changing Parameters.

Sampe Code -> Show Sample Code

Keyboard Shortcuts -> three dot menu -> Show Keyboard Shortcuts

Write the required logic.

IF purchaseorder-supplier EQ ‘0000100005’.
APPEND VALUE #( messagetype = ‘E’ messagevariable1 = |Choose another Supplier| ) TO messages.
ENDIF.

 Navigate to Create Purchase order (ME21N)

Provide the required details and check.

Error is appeared as per logic written.

This implementation class can be opened in the eclipse, and break point can be added in the logic, and it triggers when creating purchase order in the Create Purchase Order (ME21N).

Key-user objects can be displayed and debugged but cannot be edited with ABAP development tools.

Conclusion                     

In Key User Extensibility,

Custom logic can be added and Enhancements can be created using Custom Logic App.

Own implementation can be created and those can be deleted.

Implementation can be published to test, production systems

Code can be compared with older code versions.

References

Custom Logic | SAP Help PortalCustom Logic Tracing | SAP Help PortalExtensibility | SAP Help PortalKey User Extensibility | SAP Help Portal

​ IntroductionIn On Stack extensibility, Enhancements can be created using Custom Logic App in Key User Extensibility.Key user extensibility also know as In App extensibility, extensions can be added with key user tools. Key User Extensibility / In App Extensibility- Custom LogicCustom Logic is one of the Key User Extensibility Tools                        In the Custom logic App, Custom logic can be addedEasy exploration of extension points, key user documentationSyntax check, syntax highlighting, code completionDraft, published, testing includedABAP Language Version for Key UsersEnhancements can be created using Custom Logi AppBusiness Accelerator HubSAP Business Accelerator Hub provides a section for On Stack extensibility (key user extensibility and developer extensibility), to know list of SAP CDS views, APIs, Business Add-ins etc. are available with the release status.Navigate to Business Accelerator Hub to find BAdisOn Stack Extensibility -> Business Add-insSearch for required BAdi.This BAdi is related to check purchase order before saving to create it.Here it shows BAdi Definition and Enhancement spot.BAdi can be used in both Key User and Developer Extensibility as both states of BAdi is in released state.Methods and its Parameters Steps to Create Custom LogicNavigate to Custom logic AppCustom Logic AppChoose Create button to create Custom Logic.Choose Required Business Content List of available BAdi Definitions for the business context.Choose required BAdi Definition.Its Documentation.Choose Step 2 to add Implementation Description and ID.Implementation ID automatically appears based on Description and it can also be changed.Choose ReviewChoose CreateClick on Publish button.Its published.Click on Open Code Editor to write the logic.Importing Parameters.Changing Parameters.Sampe Code -> Show Sample CodeKeyboard Shortcuts -> three dot menu -> Show Keyboard ShortcutsWrite the required logic.IF purchaseorder-supplier EQ ‘0000100005’.
APPEND VALUE #( messagetype = ‘E’ messagevariable1 = |Choose another Supplier| ) TO messages.
ENDIF. Navigate to Create Purchase order (ME21N)Provide the required details and check.Error is appeared as per logic written.This implementation class can be opened in the eclipse, and break point can be added in the logic, and it triggers when creating purchase order in the Create Purchase Order (ME21N).Key-user objects can be displayed and debugged but cannot be edited with ABAP development tools. Conclusion                     In Key User Extensibility,Custom logic can be added and Enhancements can be created using Custom Logic App.Own implementation can be created and those can be deleted.Implementation can be published to test, production systemsCode can be compared with older code versions. ReferencesCustom Logic | SAP Help PortalCustom Logic Tracing | SAP Help PortalExtensibility | SAP Help PortalKey User Extensibility | SAP Help Portal    Read More Technology Blog Posts by Members articles 

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