How To Fix MU121 - Procurement material &1 must be a display.

SAP Error Message - Details

• Message type: E = Error

• Message class: MU - Maintenance of structured materials

• Message number: 121

• Message text: Procurement material &1 must be a display.

What causes this issue?

You want to create material &V1& to be used in the context of logistical
materials as a procurement material.
The material category of your material must be 12 (<LS>display</>),
material &V1& is material category &V2&.

System Response

To avoid a data inconsistency in the material master, the system stops
processing and does not allow you to create or change the material
master data.

How to fix this error?

If possible<(>,<)> change the value of the material category to value 12
(<LS>display</>). If this is not possible, choose another material.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MU121 - Procurement material &1 must be a display. ?

  The SAP error message MU121 indicates that a procurement material must be set to "display" mode. This typically occurs when there is an issue with the material master data configuration, particularly in the context of procurement.
  Cause:
  
  Material Master Configuration: The material in question may not be properly configured for procurement. This can happen if the material type does not allow for procurement or if the relevant views (like purchasing or MRP) are not maintained.
  Status of the Material: The material might be set to a status that does not allow procurement activities, such as being marked as obsolete or inactive.
  Missing Data: Required fields in the material master for procurement might be missing or incorrectly filled out.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record using transaction code MM03 (Display Material).
  Verify that the material type is appropriate for procurement.
  Ensure that the purchasing view is maintained and that all required fields are filled out correctly.
  
  
  
  Change Material Status:
  
  If the material is inactive or obsolete, you may need to change its status. This can be done using transaction code MM02 (Change Material).
  Ensure that the material is set to a status that allows procurement.
  
  
  
  Review Material Type Settings:
  
  Check the configuration of the material type in transaction code OMS2. Ensure that the material type allows for procurement and that the relevant views are activated.
  
  
  
  Consult with Your SAP Administrator:
  
  If you are unable to resolve the issue, it may be necessary to consult with your SAP administrator or a functional consultant who can provide further insights into the configuration and settings.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  MMBE: Stock Overview
  
  
  Material Types: Different material types have different settings and capabilities. Ensure that the material type you are using is appropriate for your procurement needs.
  User Authorizations: Ensure that you have the necessary authorizations to view or change material master data.
  
  By following these steps, you should be able to identify and resolve the issue related to the MU121 error message in SAP.