How To Fix C1097 - Invalid data type

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 097

• Message text: Invalid data type

What causes this issue?

You have entered a data type that is not supported.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Display the list of possible entries for the data type, and select one.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1097 - Invalid data type ?

  The SAP error message C1097 "Invalid data type" typically occurs when there is a mismatch between the expected data type and the actual data type being processed in a program or transaction. This can happen in various contexts, such as when working with ABAP programs, data dictionary objects, or during data uploads.
  Causes:
  
  Data Type Mismatch: The most common cause is that the data being processed does not match the expected data type. For example, trying to assign a string to a numeric field.
  Incorrect Field Definitions: If the field definitions in the data dictionary (DDIC) are not correctly set up, it can lead to this error.
  Parameter Mismatch: When calling a function module or method, if the parameters passed do not match the expected data types, this error can occur.
  Data Upload Issues: During data uploads (e.g., using LSMW or BAPIs), if the source data does not conform to the expected format, this error may arise.
  
  Solutions:
  
  Check Data Types: Review the data types of the fields involved in the operation. Ensure that the data being processed matches the expected types.
  Review Field Definitions: If you are working with custom fields or tables, check the data dictionary definitions to ensure they are correctly defined.
  Debugging: If you are working with ABAP code, use the debugger to trace the execution and identify where the data type mismatch occurs.
  Function Module Parameters: When calling function modules or methods, verify that the parameters being passed are of the correct type and length.
  Data Validation: Implement data validation checks before processing to ensure that the data conforms to the expected formats.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the various data types in ABAP (e.g., CHAR, NUMC, DATS, TIMS) and their characteristics.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific transaction or program you are working with.
  Documentation: Refer to SAP documentation for guidelines on data handling and type definitions.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By addressing the root cause of the data type mismatch and ensuring that all data conforms to the expected formats, you can resolve the C1097 error effectively.