How To Fix PRC_MESSAGES_EXT728 - Maintain unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: PRC_MESSAGES_EXT -

• Message number: 728

• Message text: Maintain unit of measure

What causes this issue?

A group condition with group key routines and scale data without a unit
unit of measure is not allowed for some scale base types.

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?

Maintain a unit of measure.

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 PRC_MESSAGES_EXT728 - Maintain unit of measure ?

  The SAP error message PRC_MESSAGES_EXT728, which states "Maintain unit of measure," typically occurs in the context of procurement or inventory management when a unit of measure (UoM) is not defined or is incorrectly configured for a material or product in the system. This can happen during various transactions, such as creating or updating purchase orders, material master records, or inventory items.
  Cause:
  
  Missing Unit of Measure: The material master record does not have a unit of measure defined for the specific purchasing or inventory scenario.
  Incorrect Configuration: The unit of measure might be incorrectly configured or not linked to the material in the relevant views (e.g., purchasing, sales, or inventory).
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the unit of measure tables.
  Material Type Restrictions: Certain material types may have restrictions on the units of measure that can be used.
  
  Solution:
  
  
  Maintain Material Master:
  
  Go to the transaction code MM02 (Change Material) or MM01 (Create Material).
  Enter the material number and select the relevant views (e.g., Basic Data, Purchasing).
  Ensure that the unit of measure is defined in the appropriate fields. For purchasing, check the "Purchasing" view and ensure that the "Order Unit" and "Base Unit of Measure" are correctly set.
  
  
  
  Check Unit of Measure Settings:
  
  Use transaction code OMN3 to check the unit of measure settings.
  Ensure that the unit of measure is defined in the system and is active.
  
  
  
  Review Material Type Configuration:
  
  Check if the material type allows the use of the specified unit of measure. This can be done in the configuration settings (transaction code SPRO).
  Navigate to Logistics - General > Material Master > Basic Settings > Define Units of Measure.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the material master data to identify any discrepancies or missing information.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files for additional context on the error message and related configuration settings.
  
  
  
  Related Information:
  
  Transaction Codes: MM01, MM02, OMN3, SPRO
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that the user has the necessary permissions to maintain material master data.
  Training: Consider training for users involved in material management to prevent similar issues in the future.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management.