How To Fix DB860 - Invalid type: Table header or deeper type

SAP Error Message - Details

• Message type: E = Error

• Message class: DB - Messages for logical databases and background processing

• Message number: 860

• Message text: Invalid type: Table header or deeper type

What causes this issue?

When converting from an external format to an internal format, the
internal format was unpermitted. It is either an internal table or a
deeper structure (a structure containing one or more internal tables).
The system cannot convert from character format in this case.

System Response

Conversion unsuccessful.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB860 - Invalid type: Table header or deeper type ?

  The SAP error message DB860 "Invalid type: Table header or deeper type" typically occurs when there is an issue with the data type definitions in the ABAP Dictionary or when there is an inconsistency in the data structure being used in a database operation. This error can arise in various scenarios, such as when working with internal tables, database tables, or when performing operations that involve data types.
  Causes:
  
  Incorrect Data Type Definition: The data type of a field or structure may not be defined correctly in the ABAP Dictionary.
  Inconsistent Data Structures: There may be inconsistencies between the data structure defined in the ABAP program and the actual database table structure.
  Use of Unsupported Data Types: Certain data types may not be supported for specific operations, such as using a nested table or a complex structure where a simple type is expected.
  Changes in Data Dictionary: If there have been recent changes to the data dictionary (like changes to table structures or data types), and the program has not been adjusted accordingly, this error may occur.
  
  Solutions:
  
  Check Data Type Definitions: Review the data type definitions in the ABAP Dictionary (transaction SE11) to ensure that they are correct and consistent with the expected types in your program.
  Adjust Program Logic: If you are using internal tables or structures, ensure that they are defined correctly and match the expected types. For example, if you are trying to pass a table to a function module, ensure that the table type is compatible.
  Recompile the Program: Sometimes, recompiling the program can resolve inconsistencies. Use transaction SE38 or SE80 to activate the program again.
  Check for Changes in Data Dictionary: If there have been recent changes to the database tables or structures, ensure that your program is updated to reflect those changes.
  Debugging: Use the ABAP debugger to trace the point at which the error occurs. This can help identify the specific data structure or operation causing the issue.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE38 (ABAP Editor).
  ABAP Data Types: Familiarize yourself with the different ABAP data types and their compatibility.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review the official SAP documentation for guidelines on data types and structures in ABAP.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP Basis or ABAP development team for further assistance, as they may have more insights into the specific configurations and customizations in your SAP environment.