How To Fix MCW_AA_AT002 - Specify a merchandise category hierarchy (no materials)

SAP Error Message - Details

• Message type: E = Error

• Message class: MCW_AA_AT - Messages for Allocation Rule Generation Based on BW

• Message number: 002

• Message text: Specify a merchandise category hierarchy (no materials)

What causes this issue?

You have selected generation for a material group hierarchy.
You cannot specify any materials.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCW_AA_AT002 - Specify a merchandise category hierarchy (no materials) ?

  The SAP error message MCW_AA_AT002 indicates that a merchandise category hierarchy has not been specified for a particular context, and it typically occurs in the context of merchandise management or inventory management processes. This error is often encountered when trying to perform actions related to merchandise categories without having the necessary hierarchy defined.
  Cause:
  
  Missing Merchandise Category Hierarchy: The primary cause of this error is that the system does not have a merchandise category hierarchy defined for the materials or products you are trying to work with.
  Configuration Issues: There may be issues in the configuration settings of the merchandise category hierarchy in the SAP system.
  Data Inconsistencies: The materials or products may not be properly assigned to a merchandise category, leading to the inability to process them.
  
  Solution:
  To resolve the error MCW_AA_AT002, you can follow these steps:
  
  
  Define Merchandise Category Hierarchy:
  
  Go to the SAP Easy Access screen.
  Navigate to the configuration settings for merchandise categories (usually found under Logistics or Materials Management).
  Ensure that a merchandise category hierarchy is defined and active.
  
  
  
  Assign Materials to Merchandise Categories:
  
  Check if the materials you are trying to process are assigned to the correct merchandise categories.
  If not, assign them to the appropriate merchandise categories in the material master data.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings for merchandise category hierarchies to ensure they are set up correctly.
  Make sure that the hierarchy is active and that all necessary levels are defined.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on setting up merchandise category hierarchies.
  
  
  
  Testing:
  
  After making the necessary changes, test the process again to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM01 (Create Material), MM02 (Change Material), or OMW1 (Define Merchandise Categories) to manage materials and categories.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to make changes to merchandise categories and hierarchies.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in merchandise management.