How To Fix SY033 - Data type & not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 033

• Message text: Data type & not allowed

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 SY033 - Data type & not allowed ?

  The SAP error message SY033 ("Data type & not allowed") typically occurs when there is an issue with the data type being used in a program or function module. This error can arise in various contexts, such as when defining variables, using function calls, or performing operations that require specific data types.
  Causes:
  
  Invalid Data Type: The data type specified in the code is not recognized or is not allowed in the context where it is being used.
  Type Mismatch: There may be a mismatch between the expected data type and the actual data type being passed to a function or method.
  Incorrect Field Definition: If a field in a structure or table is defined with an unsupported data type, this error can occur.
  Use of Non-Standard Data Types: Attempting to use a data type that is not standard in ABAP (Advanced Business Application Programming) or is not compatible with the operation being performed.
  
  Solutions:
  
  Check Data Type Definitions: Review the data type definitions in your code. Ensure that you are using valid and supported data types. Common data types in ABAP include CHAR, NUMC, DATS, TIMS, etc.
  Correct Type Mismatch: If you are passing parameters to a function or method, ensure that the data types of the actual parameters match the expected types in the function signature.
  Use Standard Data Types: Stick to standard ABAP data types and avoid using custom or non-standard types unless absolutely necessary.
  Debugging: Use the ABAP debugger to trace the execution of your program and identify where the error occurs. This can help pinpoint the exact line of code causing the issue.
  Consult Documentation: Refer to SAP documentation or the ABAP programming guidelines for information on valid data types and their usage.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the various data types available in ABAP and their characteristics. This includes scalar types, complex types, and reference types.
  Function Module Documentation: If the error occurs while calling a function module, check the documentation for that module to understand the expected data types for its parameters.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  
  By following these steps, you should be able to identify the cause of the SY033 error and implement a solution to resolve it.