How To Fix GR212 - Internal error: Invalid type in APPEND-C.

SAP Error Message - Details

• Message type: E = Error

• Message class: GR - Report Writer

• Message number: 212

• Message text: Internal error: Invalid type in APPEND-C.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message GR212 - Internal error: Invalid type in APPEND-C. ?

  The SAP error message GR212 "Internal error: Invalid type in APPEND-C." typically occurs during the execution of ABAP programs, particularly when dealing with internal tables and their structures. This error indicates that there is an issue with the data type being used in an APPEND statement, which is trying to add a record to an internal table.
  Causes:
  
  Mismatched Data Types: The structure of the internal table does not match the data being appended. For example, if the internal table is defined with a specific structure, but the data being appended does not conform to that structure, this error can occur.
  Incorrect Field Lengths: If the fields in the data being appended have lengths that exceed the defined lengths in the internal table structure, it can lead to this error.
  Uninitialized Variables: If the variable being appended is not properly initialized or is of an incorrect type, it can cause this error.
  Corrupted Data: Sometimes, the data being processed may be corrupted or not in the expected format.
  
  Solutions:
  
  Check Data Types: Ensure that the data types of the fields in the internal table match the data being appended. Use the DESCRIBE FIELD statement to check the data types if necessary.
  Review Internal Table Definition: Verify the definition of the internal table and ensure that it is correctly defined with the appropriate structure.
  Initialize Variables: Make sure that any variables being appended to the internal table are properly initialized and of the correct type.
  Debugging: Use the ABAP debugger to step through the code and identify the exact point where the error occurs. This can help in understanding what data is being processed and why it is causing the error.
  Check for Corruption: If the data is coming from an external source or a database, ensure that it is not corrupted or malformed.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on internal tables and the APPEND statement.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: Engage with SAP community forums or platforms like SAP Community, Stack Overflow, or other ABAP-focused forums to see if others have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an experienced ABAP developer for further assistance.