How To Fix SWDP_WB_TOOL279 - Component has more than 20 Views or Custom Controllers

SAP Error Message - Details

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 279

• Message text: Component has more than 20 Views or Custom Controllers

What causes this issue?

the component defines more than 20 views or controllers. The load unit
that is generated from this is very large and may be approaching the
generation limits.
If it exceeds these limits, generation is no longer possible.
Even if the generation limits have not yet been exceeded, a large load
unit has a negative influence on the performance of the whole system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

No additional views or controllers should be created in the component.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL279 - Component has more than 20 Views or Custom Controllers ?

  The SAP error message SWDP_WB_TOOL279 indicates that a component in your SAP Web Dynpro application has exceeded the limit of 20 views or custom controllers. This limit is imposed to ensure optimal performance and maintainability of the application.
  Cause:
  The error occurs when you attempt to create or manage a Web Dynpro component that has more than 20 views or custom controllers. This limit is set to prevent overly complex components that can lead to performance issues and difficulties in managing the application.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Refactor the Component:
  
  Break Down the Component: If your component has more than 20 views or controllers, consider breaking it down into smaller, more manageable components. Each component can then handle a specific part of the functionality.
  Use Reusable Components: If certain views or controllers are used across multiple components, consider creating reusable components that can be called from other components.
  
  
  
  Review the Design:
  
  Evaluate Necessity: Review the necessity of each view or controller. Determine if all of them are essential for the functionality you are trying to achieve.
  Combine Views: If possible, combine similar views into a single view that can handle multiple functionalities.
  
  
  
  Optimize the Application:
  
  Use Navigation: Instead of having multiple views within a single component, consider using navigation to switch between different components or views as needed.
  Dynamic Views: Implement dynamic views that can change based on user input or application state, reducing the need for multiple static views.
  
  
  
  Consult Documentation:
  
  Review SAP documentation and best practices for Web Dynpro development to ensure you are following recommended guidelines for component design.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  Web Dynpro Best Practices: Familiarize yourself with best practices for Web Dynpro development to avoid hitting such limits in the future.
  Performance Considerations: Understand the performance implications of having too many views or controllers in a single component, as this can affect the overall user experience.
  
  By following these steps, you should be able to resolve the SWDP_WB_TOOL279 error and improve the structure and performance of your Web Dynpro application.