How To Fix APJ_DT049 - The referenced parameter &1 must have the same data type as &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: APJ_DT - Application job designtime

• Message number: 049

• Message text: The referenced parameter &1 must have the same data type as &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APJ_DT049 - The referenced parameter &1 must have the same data type as &2. ?

  The SAP error message APJ_DT049 indicates a data type mismatch between two parameters in a function module, method, or other programming constructs. Specifically, it means that the referenced parameter (denoted as &1) is expected to have the same data type as another parameter (denoted as &2), but it does not.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that the parameters being compared or assigned do not have compatible data types. For example, one parameter might be defined as a character type while the other is defined as a numeric type.
  Incorrect Function Module/Method Call: If you are calling a function module or method and passing parameters that do not match the expected data types, this error can occur.
  Inconsistent Data Definitions: If the data types of the parameters are defined differently in the calling program and the called function/module, this error will arise.
  
  Solution:
  
  Check Parameter Definitions: Review the definitions of the parameters in both the calling program and the called function/module. Ensure that they have the same data type.
  Modify Data Types: If you find a mismatch, modify the data type of one of the parameters to ensure they match. This may involve changing the data type in the calling program or the function/module.
  Use Type Casting: If appropriate, you can use type casting to convert one data type to another, ensuring that the parameters are compatible.
  Review Function Module Documentation: Check the documentation for the function module or method you are using to ensure you are passing the correct data types.
  Debugging: If you are unsure where the mismatch is occurring, use debugging tools in SAP to step through the code and inspect the data types of the parameters at runtime.
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal or the specific documentation for the function module or method you are using for detailed information on parameter types.
  ABAP Data Types: Familiarize yourself with the various data types in ABAP (e.g., CHAR, NUMC, INT, etc.) to better understand how to match them correctly.
  Error Handling: Implement error handling in your code to catch and manage such data type mismatches gracefully.
  
  By following these steps, you should be able to resolve the APJ_DT049 error and ensure that your parameters are correctly defined and compatible.