How To Fix SWDP_WB_TOOL820 - Typing of parameter & has changed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 820

• Message text: Typing of parameter & has changed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL820 - Typing of parameter & has changed ?

  The SAP error message "SWDP_WB_TOOL820 Typing of parameter & has changed" typically occurs in the context of SAP Web Dynpro development. This error indicates that there has been a change in the data type of a parameter in a method or function module that is being used in your Web Dynpro application. This can happen due to various reasons, such as changes in the underlying data model, updates to the function module, or modifications in the interface of a component.
  Cause:
  
  Data Type Change: The parameter's data type has been modified in the method or function module definition.
  Inconsistent Interface: The interface of the component or method being called has changed, leading to a mismatch in expected data types.
  Versioning Issues: If you are working with different versions of components or function modules, there may be inconsistencies in the expected parameter types.
  
  Solution:
  
  Check the Method/Function Module: Review the method or function module where the error is occurring. Verify the data types of the parameters and ensure they match what is expected in your Web Dynpro application.
  Update the Web Dynpro Component: If the parameter types have changed, you may need to update your Web Dynpro component to reflect these changes. This could involve modifying the data types in your component's context or adjusting the method calls.
  Rebuild the Application: After making changes, rebuild your Web Dynpro application to ensure that all components are synchronized with the latest definitions.
  Check for Dependencies: If your application relies on other components or function modules, ensure that they are also updated and compatible with the changes made.
  Clear Cache: Sometimes, clearing the cache in the SAP system can help resolve issues related to outdated definitions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the official SAP documentation for Web Dynpro and the specific components you are working with to understand the expected data types and interfaces.
  Community Forums: Engage with the SAP community forums or support channels to see if others have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.