How To Fix MU126 - Category of logistical material &1 is missing.

MU126 - Overview

• Message type: E = Error

• Message class: MU - Maintenance of structured materials

• Message number: 126

• Message text: Category of logistical material &1 is missing.

What causes this issue?

You want to create or change material &V1&. You have maintained a value
for field <LS>Material Number of a Sales Material</> but the no value
for the <LS>Category of a Logistical Material </>field. The system has
identified that the material should be used in the context of logistical
materials either as a sales material or a procurement material.

System Response

To keep the material data consistent, the system prevents you from
saving this material because the <LS>Category of a Logistical Material
</> must be specified.

How to fix this error?

Please check whether you intended to create a procurement material or a
sales material to be used in the context of logistical materials.
If you did not intend to create a sales material or procurement
material, leave the fields <LS>Material Number of a Sales Material</>
and <LS>Category of a Logistical Material</> empty.
If you intended to create a procurement material<(>,<)> make sure that
the field <LS>Category of a Logistical Material</> contains value <ZH>P
</>.
If you intended to create a sales material<(>,<)> make sure that the
field <LS>Category of a Logistical Material</> contains value <ZH>S</>.

Procedure for System Administrators

Please check the content of MARA table fields SALES_MATERIAL and
LOGISTICAL_MAT_CATEGORY.

Error message extract from SAP system. Copyright SAP SE.

MU126 - Details

• The SAP error message MU126, which states "Category of logistical material &1 is missing," typically occurs in the context of material management and logistics within the SAP system. This error indicates that the system is unable to find a required category for the specified material, which can hinder processes such as inventory management, procurement, or production planning.
  
  Cause:
  
  Missing Configuration: The logistical category for the material may not have been defined in the system. This could happen if the material master data was not set up correctly.
  Incorrect Material Type: The material type assigned to the material may not be compatible with the logistical category required for the operations being performed.
  Data Inconsistency: There may be inconsistencies in the material master data, such as missing entries in the relevant tables.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or modify the logistical category.
  
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master