How To Fix LD012 - Internal line hierarchy structure is damaged

SAP Error Message - Details

• Message type: E = Error

• Message class: LD - Logistics Automotive Line Design

• Message number: 012

• Message text: Internal line hierarchy structure is damaged

What causes this issue?

An internal error has occurred in the program for processing the line
hierarchy. Therefore, the system cannot continue processing.

How to fix this error?

Carry out the transaction again. If this error recurs, send a problem
message to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LD012 - Internal line hierarchy structure is damaged ?

  The SAP error message LD012, which states "Internal line hierarchy structure is damaged," typically occurs in the context of Logistics and can be related to issues with the line item hierarchy in documents such as sales orders, purchase orders, or delivery documents. This error indicates that there is a problem with the internal data structure that SAP uses to manage the hierarchy of line items.
  Causes:
  
  Data Corruption: The internal structure may have become corrupted due to system errors, incomplete transactions, or issues during data migration.
  Inconsistent Data: If there are inconsistencies in the data, such as missing or incorrect references between line items, it can lead to this error.
  Custom Development: If there are custom programs or enhancements that manipulate line items, they may inadvertently cause structural issues.
  System Upgrades or Patches: Sometimes, after an upgrade or patch, existing data structures may not align with the new system requirements.
  
  Solutions:
  
  Check for Data Consistency: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant tables for inconsistencies. Look for missing or incorrect entries in the tables related to the document causing the error.
  Recreate the Document: If the document is not critical, consider deleting and recreating it. This can often resolve issues related to corrupted data.
  Use Repair Tools: SAP provides various tools and programs to repair data inconsistencies. For example, you can use transaction code SARA to archive and delete old data, which may help in cleaning up the database.
  Check Custom Code: If there are custom developments, review the code to ensure it is not causing the issue. Debugging may be necessary to identify the root cause.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or recommendations available.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. They can provide guidance based on the specific context of your system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, and SARA for data management.
  SAP Notes: Regularly check for updates and notes related to your version of SAP, as they may contain fixes for known issues.
  Backup and Recovery: Always ensure that you have a backup of your data before making significant changes or repairs to avoid data loss.
  
  By following these steps, you should be able to diagnose and potentially resolve the LD012 error in your SAP system.