How To Fix KP591 - Unit of measure &1 cannot be converted to resource unit &2

SAP Error Message - Details

• Message type: E = Error

• Message class: KP - CO-OM Planning

• Message number: 591

• Message text: Unit of measure &1 cannot be converted to resource unit &2

What causes this issue?

You have transferred unit of measure &V1& to the planning data
interface for a resource planning. However, unit &V2& is stored in the
master record for resource &V3&. Conversion between these units is not
possible.

System Response

The record is updated using the unit of measure in the master record.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KP591 - Unit of measure &1 cannot be converted to resource unit &2 ?

  The SAP error message KP591 indicates that there is an issue with the conversion of a unit of measure (UoM) to a resource unit in the context of cost planning or activity planning. This typically occurs when the system is unable to convert the specified unit of measure into the unit of measure that is required for the resource.
  
  Cause:
  
  Missing Conversion Factors: The conversion factors between the specified unit of measure and the resource unit may not be defined in the system.
  Incorrect Unit of Measure: The unit of measure being used may not be valid for the resource or may not be set up correctly in the system.
  
  Configuration Issues: There may be configuration issues in the material master or resource master data that prevent the conversion from occurring.
  Inconsistent Data: There may be inconsistencies in the data related to units of measure in the relevant master records.
  
  
  Solution:
  
  
  Check Unit of Measure Configuration:
  
  Go to