How To Fix WW089 - Material group created. Hierarchy allocation not created.

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 089

• Message text: Material group created. Hierarchy allocation not created.

What causes this issue?

An internal error occured in the classification system when
assigning the hierarchy level.

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

System Response

How to fix this error?

Attempt this again later and check your material group hierarchy.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW089 - Material group created. Hierarchy allocation not created. ?

  The SAP error message WW089, which states "Material group created. Hierarchy allocation not created," typically occurs when a new material group is created in the system, but the hierarchy allocation for that material group has not been established. This can happen in various scenarios, particularly when dealing with material master data and classifications.
  Cause:
  
  Missing Hierarchy Allocation: When a new material group is created, it may not automatically be assigned to a hierarchy. This can happen if the hierarchy structure is not properly defined or if the necessary configuration steps were not followed.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to create or modify hierarchy allocations.
  Configuration Issues: The system may not be configured correctly to handle the hierarchy for material groups, leading to this error.
  
  Solution:
  
  
  Create Hierarchy Allocation:
  
  Navigate to the relevant transaction in SAP (e.g., OMW1 for material group hierarchy).
  Manually create the hierarchy allocation for the newly created material group.
  Ensure that the material group is assigned to the correct hierarchy level.
  
  
  
  Check Authorizations:
  
  Verify that the user has the necessary authorizations to create and manage hierarchy allocations.
  If not, contact your SAP security administrator to obtain the required permissions.
  
  
  
  Review Configuration:
  
  Check the configuration settings for material groups and hierarchies in the SAP system.
  Ensure that the hierarchy structure is defined correctly and that all necessary settings are in place.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for specific instructions on managing material groups and hierarchies.
  If needed, consult with your SAP support team or a functional consultant for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and OMW1 (Maintain Material Group Hierarchy).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Training: Consider training sessions or workshops on material management and hierarchy structures in SAP to better understand the processes involved.
  
  By following these steps, you should be able to resolve the WW089 error and ensure that your material groups are properly allocated within the hierarchy.