How To Fix DDLS189 - Function &: parameter at position & has incorrect type &

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 189

• Message text: Function &: parameter at position & has incorrect type &

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS189 - Function &: parameter at position & has incorrect type & ?

  The SAP error message DDLS189 indicates that there is a type mismatch for a parameter in a function module or method. Specifically, the error message format is as follows:
  DDLS189 Function &: parameter at position & has incorrect type &
  Cause
  This error typically occurs when:
  
  A function module or method is called with parameters that do not match the expected data types defined in its interface.
  The parameter types may differ in terms of data type (e.g., passing a string where an integer is expected) or structure (e.g., passing a simple type where a complex type is expected).
  Changes in the function module or method signature that have not been reflected in the calling code.
  
  Solution
  To resolve the DDLS189 error, you can follow these steps:
  
  
  Check Function Module/Method Signature:
  
  Go to the function module or method definition in the ABAP Dictionary (transaction SE37 for function modules or SE80 for methods).
  Verify the expected parameter types and their positions.
  
  
  
  Review Calling Code:
  
  Inspect the code where the function module or method is being called.
  Ensure that the parameters being passed match the expected types and order as defined in the function module or method.
  
  
  
  Data Type Conversion:
  
  If necessary, perform explicit data type conversions before passing parameters. For example, use CONCATENATE, CAST, or other conversion functions to ensure the data types match.
  
  
  
  Check for Changes:
  
  If the function module or method has been recently modified, ensure that all calling programs have been updated accordingly.
  
  
  
  Debugging:
  
  If the issue persists, use the debugger to step through the code and inspect the values and types of the parameters being passed at runtime.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SE37: Function Module Maintenance
  SE80: Object Navigator (for methods and classes)
  SE11: Data Dictionary (to check data types)
  
  
  
  Documentation:
  
  Review the SAP documentation for the specific function module or method to understand its expected parameters and their types.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that might address known issues or provide additional guidance related to the specific function module or method.
  
  
  
  By following these steps, you should be able to identify and correct the cause of the DDLS189 error in your SAP environment.