How To Fix WW009 - Material group hierarchy level & does not exist

WW009 - Overview

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 009

• Message text: Material group hierarchy level & does not exist

What causes this issue?

The material group hierarchy level & does not exist.

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?

Enter a new material group hierarchy level.

Error message extract from SAP system. Copyright SAP SE.

WW009 - Details

• The SAP error message WW009, which states "Material group hierarchy level & does not exist," typically occurs when there is an attempt to access or reference a material group hierarchy level that has not been defined or does not exist in the system. This can happen in various scenarios, such as during material master creation, changes, or when running reports that involve material groups.
  
  Cause:
  
  Missing Hierarchy Level: The specified material group hierarchy level has not been created in the system.
  Incorrect Configuration: The configuration settings for material groups may not be set up correctly.
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the relevant tables.
  Authorization Issues: The user may not have the necessary authorizations to access the material group hierarchy.
  
  
  Solution:
  
  
  Check Material Group Hierarchy:
  
  Go to the transaction code OMW1 (or SPRO -> Logistics General -> Material Master -> Settings for Key Fields -> Define Material Groups) to verify