How To Fix XT106 - Could not unpack table/structure &1

SAP Error Message - Details

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 106

• Message text: Could not unpack table/structure &1

What causes this issue?

An error occurred in the TMS communication layer.
Command: <LS>&V2&</>
System: <LS>&V3&</>
Error: <LS>&V4&</>
Table/structure: <LS>&V1&</>

System Response

The function terminates.

How to fix this error?

The specified table or structure could not be decoded after transfer.
Correct the error and execute the command again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message XT106 - Could not unpack table/structure &1 ?

  The SAP error message XT106, which states "Could not unpack table/structure &1," typically occurs when there is an issue with unpacking data from a table or structure in an ABAP program. This error can arise due to various reasons, including data inconsistencies, incorrect data types, or issues with the data transport.
  Causes:
  
  Data Type Mismatch: The structure or table being unpacked does not match the expected data type or format.
  Inconsistent Data: The data being unpacked may be corrupted or not in the expected format.
  Transport Issues: If the data was transported from one system to another, there may have been issues during the transport process.
  Version Mismatch: The structure or table definition may have changed between the time the data was packed and the time it is being unpacked.
  Memory Issues: Insufficient memory or buffer space can also lead to unpacking errors.
  
  Solutions:
  
  Check Data Types: Ensure that the data types of the source and target structures/tables match. Review the definitions in the ABAP Dictionary (SE11).
  Validate Data: Check the integrity of the data being unpacked. If the data is coming from a transport, ensure that it was transported correctly.
  Repack Data: If possible, repack the data using the correct structure and then attempt to unpack it again.
  Debugging: Use the ABAP debugger to step through the code and identify where the unpacking fails. This can provide insights into the specific data causing the issue.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this can resolve known issues.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) to investigate the structures and function modules involved.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review the official SAP documentation for any specific guidelines related to the structures or tables you are working with.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.