How To Fix IL811 - The numbering of the hierarchy levels is incorrect

SAP Error Message - Details

• Message type: E = Error

• Message class: IL - PM: ILOM - Functional Locations

• Message number: 811

• Message text: The numbering of the hierarchy levels is incorrect

What causes this issue?

The numbering of the hierarchy levels in your edit mask is incorrect.

System Response

INCLUDE 'KEINE-VERARBEITUNG' OBJECT DOKU ID TX LANGUAGE E

How to fix this error?

Correct the entry.
The numbering of the levels starts with "1"; each subsequent level
should be given the next higher number. As the levels can only be
represented by a single figure, level 10 is shown by a "0", level 11 by
a "1" and so on.
Example:
Structure: XXX-XX_XXX.X-XXX=X/XX;XXX-XX/X:XX-X/X
Levels: 1 2 3 4 5 6 7 8 9 0 1 2 3

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IL811 - The numbering of the hierarchy levels is incorrect ?

  The SAP error message IL811, which states "The numbering of the hierarchy levels is incorrect," typically occurs in the context of SAP's Integrated Logistics (IL) module, particularly when dealing with hierarchical structures such as bills of materials (BOMs), production versions, or other hierarchical data.
  Cause:
  The error IL811 is usually caused by one of the following issues:
  
  
  Incorrect Level Numbering: The hierarchy levels in the structure are not numbered correctly. For example, if you have a parent-child relationship, the child might be assigned a level number that does not follow the expected sequence.
  
  
  Missing Levels: There may be missing levels in the hierarchy, which can lead to inconsistencies in how the levels are defined.
  
  
  Data Entry Errors: Manual data entry errors can lead to incorrect level assignments.
  
  
  Configuration Issues: There may be issues with the configuration of the hierarchy in the system, such as incorrect settings in the relevant customizing transactions.
  
  
  Solution:
  To resolve the IL811 error, you can take the following steps:
  
  
  Check Hierarchy Levels: Review the hierarchy structure to ensure that all levels are correctly numbered and that there are no gaps or inconsistencies. Each level should follow a logical sequence.
  
  
  Correct Level Assignments: If you find any incorrect level assignments, correct them in the relevant transaction (e.g., BOM maintenance, production version maintenance).
  
  
  Use Transaction Codes: Utilize relevant transaction codes to check and maintain the hierarchy. For example:
  
  CS02: Change BOM
  CS03: Display BOM
  C223: Maintain Production Versions
  
  
  
  Recreate the Hierarchy: If the hierarchy is too complex or corrupted, consider recreating it from scratch to ensure that all levels are correctly defined.
  
  
  Consult Documentation: Refer to SAP documentation or help files for specific guidelines on maintaining hierarchical structures in your version of SAP.
  
  
  Check Customizing Settings: If the issue persists, check the customizing settings related to the hierarchy in the SAP IMG (Implementation Guide) to ensure they are set up correctly.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a recurring problem.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  Training and Documentation: Ensure that users involved in data entry and maintenance of hierarchical structures are adequately trained to minimize errors.
  
  By following these steps, you should be able to identify and correct the issues causing the IL811 error in your SAP system.