How To Fix MCW_AA_AT001 - Specify a merchandise category hierarchy

MCW_AA_AT001 - Overview

• Message type: E = Error

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

• Message number: 001

• Message text: Specify a merchandise category hierarchy

What causes this issue?

You have selected generation for a material group hierarchy.
Specify one material group hierarchy.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCW_AA_AT001 - Specify a merchandise category hierarchy ?

  The SAP error message MCW_AA_AT001 indicates that a merchandise category hierarchy must be specified in the system. This error typically occurs in the context of merchandise management or when working with the SAP Retail module, particularly when trying to create or manage merchandise categories without having defined a hierarchy.
  
  Cause:
  The error is caused by the absence of a defined merchandise category hierarchy in the system. This hierarchy is essential for organizing and classifying merchandise in a structured manner, allowing for better management and reporting.
  
  Solution:
  To resolve the error MCW_AA_AT001, you need to ensure that a merchandise category hierarchy is defined in your SAP system. Here are the steps to do this:
  
  
  Access the SAP Easy Access Menu:
  
  Navigate to the SAP Easy Access screen.
  
  
  
  Define Merchandise Category Hierarchy:
  
  Go to the transaction code OMW1 (or use the menu path: Logistics > Logistics Execution > Merchandise Management > Master Data > Merchandise Category > Define Merchandise Category