How To Fix CR173 - A unit of measure with dimension & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CR - (1,099) Work Center; (100,200) Capacity

• Message number: 173

• Message text: A unit of measure with dimension & already exists

What causes this issue?

You attempted to maintain two conversion factors for the same dimension.

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

System Response

The system only allows one conversion factor for each dimension.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CR173 - A unit of measure with dimension & already exists ?

  The SAP error message CR173, which states "A unit of measure with dimension & already exists," typically occurs when you are trying to create a new unit of measure (UoM) in the system that has the same dimension as an existing unit of measure. This can happen in various SAP modules, particularly in materials management (MM) or production planning (PP).
  Cause:
  
  Duplicate UoM: You are attempting to create a unit of measure that already exists in the system with the same dimension. For example, if you are trying to create a new unit of measure "KG" (kilograms) and it already exists, you will encounter this error.
  Incorrect Configuration: There may be a configuration issue where the system is not recognizing the existing unit of measure correctly.
  Data Entry Error: Sometimes, a simple typographical error can lead to this issue, where the user believes they are entering a new unit of measure but are actually duplicating an existing one.
  
  Solution:
  
  Check Existing Units of Measure: Before creating a new unit of measure, check the existing units in the system. You can do this by navigating to the relevant transaction (e.g., CUNI for unit of measure maintenance) and searching for the unit you are trying to create.
  Use Existing UoM: If the unit of measure already exists, consider using it instead of creating a new one. This will help maintain data integrity and avoid duplication.
  Modify Existing UoM: If you need to change the properties of an existing unit of measure, you can modify it instead of creating a new one.
  Consult Documentation: Review SAP documentation or help files for guidance on unit of measure management to ensure you are following the correct procedures.
  Contact SAP Support: If you believe this error is occurring in error or if you cannot resolve it, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Unit of Measure Configuration: Understanding how units of measure are configured in SAP can help prevent this error. Familiarize yourself with the relevant tables (e.g., T006 for units of measure) and transaction codes.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve the issue.
  Training and Documentation: Ensure that users involved in creating or managing units of measure are adequately trained and have access to documentation to minimize errors.
  
  By following these steps, you should be able to resolve the CR173 error and manage units of measure effectively in your SAP system.