How To Fix APS_CCV_CHECK105 - Changing the type of parameter &1 is incompatible.

SAP Error Message - Details

• Message type: E = Error

• Message class: APS_CCV_CHECK - Custom CDS View check messages

• Message number: 105

• Message text: Changing the type of parameter &1 is incompatible.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APS_CCV_CHECK105 - Changing the type of parameter &1 is incompatible. ?

  The SAP error message APS_CCV_CHECK105, which states "Changing the type of parameter &1 is incompatible," typically occurs in the context of ABAP programming or when working with function modules, methods, or interfaces. This error indicates that there is an attempt to change the data type of a parameter that is not allowed due to compatibility issues.
  Cause:
  
  Incompatible Data Types: The parameter in question is being changed to a type that is not compatible with its previous definition. For example, changing a parameter from a numeric type to a character type.
  Interface Changes: If the parameter is part of an interface or a method that is being implemented or overridden, changing the type can lead to incompatibility with existing implementations.
  Function Module Changes: If a function module is modified to change the type of a parameter, any existing calls to that function module with the old parameter type will fail.
  
  Solution:
  
  Check Parameter Definition: Review the definition of the parameter in the relevant function module, method, or interface. Ensure that the data type is appropriate and consistent with its usage.
  Update Calls: If the parameter type has been changed intentionally, ensure that all calls to the function module or method are updated to use the new data type.
  Use Compatible Types: If you need to change the parameter type, consider using a compatible type or creating a new parameter instead of changing the existing one.
  Documentation: Document any changes made to parameters, especially in shared interfaces or function modules, to avoid confusion for other developers.
  Testing: After making changes, thoroughly test the affected areas of the application to ensure that there are no further compatibility issues.
  
  Related Information:
  
  ABAP Development: Understanding data types in ABAP is crucial. Familiarize yourself with the different data types and their compatibility.
  Function Module and Method Interfaces: Review the SAP documentation on function modules and method interfaces to understand how parameter types are defined and used.
  Version Control: If you are using version control for your ABAP code, check the history of changes to see if any recent modifications might have caused the issue.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  By following these steps, you should be able to resolve the APS_CCV_CHECK105 error and ensure that your parameter types are compatible.