How To Fix 88400 - Check field type: &1 in &2 is not &3

SAP Error Message - Details

• Message type: E = Error

• Message class: 88 - REA Processing

• Message number: 400

• Message text: Check field type: &1 in &2 is not &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 88400 - Check field type: &1 in &2 is not &3 ?

  The SAP error message "88400 Check field type: &1 in &2 is not &3" typically indicates a data type mismatch in a field during processing. This error occurs when the system expects a certain data type for a field but finds a different one. The placeholders (&1, &2, &3) represent specific details about the field, the table or structure it belongs to, and the expected data type, respectively.
  Cause:
  
  Data Type Mismatch: The field in question is expected to be of a certain type (e.g., character, numeric, date) but is found to be of a different type.
  Incorrect Data Entry: User input or data being processed may not conform to the expected format or type.
  Configuration Issues: Custom developments or configurations may have led to inconsistencies in data types.
  Data Migration Issues: If data has been migrated from another system, the data types may not have been correctly mapped.
  
  Solution:
  
  Check Field Definitions: Verify the data type of the field in the relevant table or structure. You can do this using transaction SE11 (Data Dictionary).
  Validate Input Data: Ensure that the data being entered or processed matches the expected data type. This may involve checking user inputs or data files.
  Review Custom Code: If the error arises from custom ABAP code, review the code to ensure that it is handling data types correctly.
  Data Conversion: If necessary, implement data conversion logic to ensure that the data being processed matches the expected type.
  Testing: After making changes, conduct thorough testing to ensure that the issue is resolved and does not recur.
  
  Related Information:
  
  Transaction Codes: Use SE11 to check the data dictionary, SE80 for object navigation, and SE37 for function modules if the error is related to a specific function.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: If the error occurs during a specific transaction or program, consider using the debugger to trace the execution and identify where the mismatch occurs.
  Documentation: Review any relevant documentation or user guides that pertain to the specific transaction or process you are working with.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.