How To Fix MU023 - The structured material & can no longer be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: MU - Maintenance of structured materials

• Message number: 023

• Message text: The structured material & can no longer be changed

What causes this issue?

You wanted to change the
<DS:GLOS.3526BBD7AFAB52B9E10000009B38F974>structured material</> &V1&.
However, this is not possible for one or both of the following reasons:
The material has already been listed.
The material is already used in logistics processes.

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?

Create a new structured material with the required components and/or
quantity relations.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MU023 - The structured material & can no longer be changed ?

  The SAP error message MU023, which states "The structured material & can no longer be changed," typically occurs when you attempt to make changes to a structured material (like a configurable material or a material with variants) that is in a status that does not allow modifications. This can happen for several reasons, including:
  Causes:
  
  Material Status: The material may be in a status that prohibits changes, such as being marked as "locked" or "blocked."
  Production Orders: If there are open production orders or stock movements associated with the material, it may prevent changes.
  Dependencies: The structured material may have dependencies or relationships with other materials that restrict modifications.
  Change Control: The material may be subject to change control processes that prevent changes after a certain point in time.
  User Authorizations: The user may not have the necessary authorizations to make changes to the structured material.
  
  Solutions:
  
  Check Material Status: Review the status of the material in the material master. If it is locked or blocked, you may need to unlock or unblock it.
  Review Open Orders: Check for any open production orders, purchase orders, or stock movements related to the material. You may need to close or complete these before making changes.
  Change Control Process: If the material is subject to a change control process, consult with the relevant stakeholders to understand the process and obtain necessary approvals.
  User Authorizations: Ensure that you have the appropriate authorizations to make changes to the material. If not, contact your SAP administrator to request the necessary permissions.
  Consult Documentation: Review any documentation or guidelines related to the management of structured materials in your organization to ensure compliance with internal processes.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM02 (Change Material) to attempt to make changes, but ensure you have the right permissions and the material is in a suitable status.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Support may have specific recommendations based on your version of SAP.
  Material Master Data: Familiarize yourself with the structure and management of material master data in SAP, especially for configurable materials or those with variants.
  
  If the issue persists after checking these aspects, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management.