How To Fix FDT_DEPLOYMENT027 - Undeclared exception &1 is thrown in &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_DEPLOYMENT - Messages for deployment

• Message number: 027

• Message text: Undeclared exception &1 is thrown in &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_DEPLOYMENT027 - Undeclared exception &1 is thrown in &2 ?

  The SAP error message FDT_DEPLOYMENT027 indicates that an undeclared exception has been thrown in a specific context, which can often occur during the deployment of a function or when executing a function module or method in SAP's Function Design Tool (FDT) or similar environments.
  Cause:
  
  Undeclared Exception: The error typically arises when a program or function module attempts to throw an exception that has not been declared in the interface. In ABAP, exceptions must be declared in the function module or method signature.
  Coding Issues: There may be issues in the code where an exception is raised without being properly handled or declared.
  Configuration Issues: Sometimes, the configuration of the function or the environment may not be set up correctly, leading to unexpected exceptions.
  Version Mismatch: If there are changes in the underlying data model or function modules that are not reflected in the deployed version, it can lead to such errors.
  
  Solution:
  
  Check Exception Declarations: Review the function module or method where the error occurs and ensure that all exceptions that can be raised are declared in the interface.
  Error Handling: Implement proper error handling in your code to catch exceptions and handle them gracefully.
  Debugging: Use the ABAP debugger to trace the execution flow and identify where the undeclared exception is being thrown. This can help pinpoint the exact location in the code.
  Review Changes: If there have been recent changes to the code or configuration, review those changes to ensure they are correct and complete.
  Consult Documentation: Check SAP notes or documentation related to the specific function or module you are working with for any known issues or updates.
  Testing: After making changes, thoroughly test the function/module to ensure that the issue is resolved and that no new issues have been introduced.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  Function Module Documentation: Review the documentation for the specific function module or method to understand its expected behavior and exception handling.
  Community Forums: Consider checking SAP Community forums or other developer forums for similar issues and solutions shared by other users.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.