How To Fix /PLMI/SP_RCP_CPA018 - Target item UoM is unequal to calc. parameter UoM; scaling not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/SP_RCP_CPA -

• Message number: 018

• Message text: Target item UoM is unequal to calc. parameter UoM; scaling not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/SP_RCP_CPA018 - Target item UoM is unequal to calc. parameter UoM; scaling not possible ?

  The SAP error message /PLMI/SP_RCP_CPA018 Target item UoM is unequal to calc. parameter UoM; scaling not possible typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where unit of measure (UoM) conversions are involved. This error indicates that there is a mismatch between the unit of measure of the target item and the unit of measure of the calculation parameters, making it impossible to perform the required scaling or conversion.
  Cause:
  
  
  Unit of Measure Mismatch: The target item has a different unit of measure than what is expected based on the calculation parameters. For example, if the target item is in kilograms but the calculation parameter is in grams, the system cannot perform the necessary calculations.
  
  
  Configuration Issues: There may be configuration issues in the material master or in the settings for the specific planning area that define how units of measure are handled.
  
  
  Data Inconsistencies: There could be inconsistencies in the master data, such as incorrect UoM settings in the material master or in the planning book.
  
  
  Scaling Factors: If scaling factors are defined incorrectly or if they do not correspond to the UoM of the target item, this error can occur.
  
  
  Solution:
  
  
  Check Unit of Measure Settings:
  
  Go to the material master (transaction code MM03) and check the UoM settings for the target item. Ensure that the UoM is correctly defined and corresponds to the expected UoM in the calculation parameters.
  
  
  
  Review Calculation Parameters:
  
  Check the calculation parameters being used in the planning run. Ensure that they are set up to use the correct UoM that matches the target item.
  
  
  
  Adjust Scaling Factors:
  
  If scaling factors are being used, verify that they are correctly defined and that they correspond to the UoM of the target item.
  
  
  
  Data Consistency Check:
  
  Perform a data consistency check to identify any discrepancies in the master data. This can often be done using transaction codes like SLG1 (Application Log) to see if there are any related error messages.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to UoM handling in the specific module you are working with. There may be specific guidelines or known issues that can help resolve the problem.
  
  
  
  Testing:
  
  After making adjustments, run a test planning run to see if the error persists. If it does, further investigation into the specific configuration and data may be necessary.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Material Master), MD04 (Stock/Requirements List), and /SAPAPO/SDP94 (Planning Book) for troubleshooting.
  Unit of Measure Configuration: Understand how UoM is configured in SAP, including the use of alternative units of measure and conversion factors.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.