How To Fix M2831 - The hierarchy is incorrect

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 831

• Message text: The hierarchy is incorrect

What causes this issue?

There are characteristic values which have additional nodes or
characteristic values attached to them. This is not allowed because in
reporting the analyses cannot interpret these characteristic values as
such.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please change your hierarchy so that no additional entries are attached
to the characteristic values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2831 - The hierarchy is incorrect ?

  The SAP error message M2831, "The hierarchy is incorrect," typically occurs in the context of Material Management (MM) or Production Planning (PP) modules when there is an issue with the structure of a hierarchy, such as a bill of materials (BOM) or a routing. This error indicates that the system has detected an inconsistency or an invalid configuration in the hierarchical data.
  Causes:
  
  Incorrect BOM Structure: The BOM may have been created with incorrect parent-child relationships, such as a component being assigned to multiple parents or a component not being assigned correctly.
  Routing Issues: Similar to BOMs, routing may have incorrect sequences or missing operations that disrupt the hierarchy.
  Missing Master Data: Required master data (like materials or work centers) may be missing or incorrectly configured.
  Data Inconsistencies: There may be inconsistencies in the data due to manual entries, data migrations, or system upgrades.
  Versioning Issues: If multiple versions of a BOM or routing exist, the system may be referencing an outdated or incorrect version.
  
  Solutions:
  
  Check BOM/Routing Structure: Review the BOM or routing structure for any inconsistencies. Ensure that all components are correctly assigned to their respective parent items.
  Validate Master Data: Ensure that all necessary master data (materials, work centers, etc.) is correctly set up and active in the system.
  Use Transaction Codes: Utilize transaction codes like CS03 (Display BOM) or CA03 (Display Routing) to inspect the hierarchy and identify any issues.
  Recreate BOM/Routing: If the hierarchy is too complex or corrupted, consider recreating the BOM or routing from scratch.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as some issues may be resolved in newer versions.
  Consult Documentation: Refer to SAP documentation or help files for specific guidelines on BOM and routing structures.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), CA01 (Create Routing), and CA02 (Change Routing).
  SAP Notes: Check SAP Notes for any known issues or fixes related to this error message. SAP Notes can provide specific guidance or patches that may resolve the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration of your SAP environment.