How To Fix SWDP_WB_TOOL356 - Tray "&1" does not contain a header

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 356

• Message text: Tray "&1" does not contain a header

What causes this issue?

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

System Response

The tray &V1& does not contain a header.

How to fix this error?

Add a header to tray &V1&.

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_TOOL356 - Tray "&1" does not contain a header ?

  The SAP error message SWDP_WB_TOOL356, which states "Tray '&1' does not contain a header," typically occurs in the context of SAP Web Dynpro applications. This error indicates that the specified tray (a UI element that can hold other UI elements) is expected to have a header, but it is missing.
  Cause:
  
  Missing Header Configuration: The tray in question has been configured without a header, which is required for proper display and functionality.
  Incorrect UI Element Setup: The UI elements within the tray may not be set up correctly, leading to the absence of a header.
  Development Errors: There may be issues in the Web Dynpro component or view where the tray is defined, such as missing properties or incorrect bindings.
  
  Solution:
  
  
  Check Tray Configuration:
  
  Open the Web Dynpro component in the SAP Web Dynpro Workbench.
  Navigate to the view where the tray is defined.
  Ensure that the tray has a header defined in its properties. You can do this by selecting the tray and checking the properties in the properties panel.
  
  
  
  Add a Header:
  
  If the header is missing, you can add it by setting the appropriate property for the tray. This might involve specifying a text or a title for the header.
  
  
  
  Review UI Element Bindings:
  
  Ensure that all UI elements within the tray are correctly bound to the context. Incorrect bindings can lead to display issues.
  
  
  
  Check for Development Errors:
  
  Review the code in the associated controller or view for any logic that might be affecting the tray's header.
  Look for any conditions that might prevent the header from being displayed.
  
  
  
  Test the Application:
  
  After making the necessary changes, test the application to ensure that the error is resolved and that the tray displays correctly with the header.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Web Dynpro for more details on configuring UI elements and handling errors.
  SAP Community: Engage with the SAP Community forums for insights from other developers who may have encountered similar issues.
  Debugging Tools: Utilize debugging tools within the SAP environment to trace the execution flow and identify where the header is not being set.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.