How To Fix 42227 - Type &2 was expected instead of &1 in the interface

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 227

• Message text: Type &2 was expected instead of &1 in the interface

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 42227 - Type &2 was expected instead of &1 in the interface ?

  The SAP error message 42227 indicates a type mismatch in the interface of a function module, method, or BAPI. Specifically, it means that the system expected a certain data type (Type &2) but received a different one (Type &1). This can occur in various scenarios, such as when calling a function module or method with incorrect parameter types.
  Cause:
  
  Data Type Mismatch: The most common cause is that the data being passed to the function or method does not match the expected data type defined in the interface.
  Incorrect Parameter Mapping: If you are using a structure or table that does not align with the expected types in the interface, this error can occur.
  Changes in Interface: If the interface of the function module or method has been changed (e.g., during an upgrade or modification), and the calling program has not been updated accordingly, this error may arise.
  
  Solution:
  
  Check Parameter Types: Review the interface of the function module or method you are calling. Ensure that the data types of the parameters you are passing match the expected types.
  Data Conversion: If there is a need to convert data types (e.g., from a string to a numeric type), ensure that you perform the necessary conversions before passing the parameters.
  Update Calling Program: If the interface has changed, update the calling program to align with the new parameter definitions.
  Debugging: Use the debugger to inspect the values and types of the parameters being passed at runtime. This can help identify where the mismatch is occurring.
  Consult Documentation: Check the documentation for the function module or method to understand the expected data types and any constraints.
  
  Related Information:
  
  Function Module/Method Documentation: Always refer to the official SAP documentation for the specific function module or method to understand its parameters and expected data types.
  SAP Notes: Search for relevant SAP Notes that might address known issues or provide guidance on similar errors.
  Community Forums: Consider checking SAP Community forums or other developer forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the cause of the error message 42227 in your SAP environment.