How To Fix RTCMMD179 - List of materials in the & assigned to & &

RTCMMD179 - Overview

• Message type: E = Error

• Message class: RTCMMD - Article Hierarchy

• Message number: 179

• Message text: List of materials in the & assigned to & &

What causes this issue?

When multiple article assignment is active, the assignments of a
material have to be unique within a category structure.

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?

Assign the material to a node below a different category.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RTCMMD179 - List of materials in the & assigned to & & ?

  The SAP error message RTCMMD179 typically indicates that there is an issue with the list of materials assigned to a specific object, such as a production order, project, or another entity in the SAP system. This error can arise in various contexts, often related to material management or production planning.
  
  Cause:
  
  Missing Material Master Data: The materials listed may not exist in the system or may not be properly set up in the material master.
  Incorrect Assignment: The materials may not be correctly assigned to the relevant object (e.g., production order, project).
  Authorization Issues: The user may not have the necessary authorizations to view or manage the materials.
  
  Configuration Issues: There may be configuration problems in the material management or production planning modules.
  Data Inconsistencies: There could be inconsistencies in the data, such as missing or incorrect entries in related tables.
  
  
  Solution:
  
  Check Material Master Data: Verify that the materials in question exist in the material master and