How To Fix FDT_CP_MSG421 - Unexpected number of arguments in '&1'.Expected: '&2', Provided: '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CP_MSG -

• Message number: 421

• Message text: Unexpected number of arguments in '&1'.Expected: '&2', Provided: '&3'

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 FDT_CP_MSG421 - Unexpected number of arguments in '&1'.Expected: '&2', Provided: '&3' ?

  The SAP error message FDT_CP_MSG421 indicates that there is an issue with the number of arguments being passed to a function or method in a script or configuration related to the SAP Fiori Design Time (FDT) framework. Specifically, the message states that the expected number of arguments does not match the number of arguments that were actually provided.
  Cause:
  
  
  Mismatch in Argument Count: The primary cause of this error is that a function or method is being called with an incorrect number of arguments. This could be due to:
  
  A typo in the function call.
  Changes in the function definition that were not reflected in the call.
  Incorrect configuration in the Fiori application or custom development.
  
  
  
  Version Compatibility: If there are updates or changes in the underlying libraries or frameworks, the expected number of arguments may have changed.
  
  
  Custom Code Issues: If there is custom code involved, it may not be adhering to the expected interface of the function being called.
  
  
  Solution:
  
  
  Check Function Definition: Review the function or method definition to confirm the expected number of arguments. Ensure that the call to this function matches the expected signature.
  
  
  Update Calls: If the function definition has changed, update all calls to this function throughout your code to ensure they provide the correct number of arguments.
  
  
  Debugging: Use debugging tools to trace the execution and identify where the incorrect call is being made. This can help pinpoint the exact location in the code that needs to be corrected.
  
  
  Review Documentation: Check the SAP documentation or release notes for any changes related to the function or method in question, especially if you have recently upgraded your SAP system or components.
  
  
  Testing: After making changes, thoroughly test the application to ensure that the error is resolved and that the functionality works as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  Community Forums: Look for discussions in SAP Community forums or other developer communities where similar issues may have been addressed.
  Fiori Development Guidelines: Review the Fiori development guidelines to ensure that your implementation adheres to best practices.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.