How To Fix O1589 - Conversion from BUoM &1 into contract unit of measure &2 failed.

SAP Error Message - Details

• Message type: E = Error

• Message class: O1 - IS-Oil : Message pool exchanges

• Message number: 589

• Message text: Conversion from BUoM &1 into contract unit of measure &2 failed.

What causes this issue?

The automatic creation of the purchase order failed. It was not
possible to convert the assigned quantity into the purchase order unit
of measure (same unit of measure as in the assigned purchase contract).

How to fix this error?

Please check:
- Whether or not the correct units of measure are being used
- Whether or not the conversion between the base unit of measure and
thecontract unit of measure has been maintained.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O1589 - Conversion from BUoM &1 into contract unit of measure &2 failed. ?

  The SAP error message O1589 indicates that there is a problem with the conversion of a base unit of measure (BUoM) into a contract unit of measure (CUoM). This typically occurs in scenarios involving materials management, sales and distribution, or contract management where different units of measure are used.
  Cause:
  
  Unit of Measure Configuration: The conversion factor between the base unit of measure and the contract unit of measure may not be defined in the system.
  Incorrect Unit of Measure: The unit of measure being used may not be valid or recognized in the context of the transaction.
  Missing Data: There may be missing or incorrect data in the material master or contract that prevents the conversion.
  Inconsistent Settings: The settings in the material master or the contract may not be consistent with the expected units of measure.
  
  Solution:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) to check if the conversion factors between the BUoM and CUoM are correctly defined.
  Ensure that the conversion factors are set up correctly for the relevant materials.
  
  
  
  Review Material Master Data:
  
  Use transaction code MM03 to display the material master data and verify the units of measure assigned to the material.
  Ensure that the base unit of measure and any alternative units of measure are correctly defined.
  
  
  
  Check Contract Data:
  
  Review the contract in question to ensure that the unit of measure specified is valid and corresponds to the material's unit of measure.
  Use transaction code ME33K to display the contract and check the unit of measure settings.
  
  
  
  Validate Settings:
  
  Ensure that the settings in the relevant configuration areas (like Sales Organization, Purchasing Organization, etc.) are consistent with the units of measure being used.
  
  
  
  Consult Documentation:
  
  If the issue persists, consult SAP documentation or reach out to your SAP support team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CUNI: Unit of Measure Conversion
  MM03: Display Material Master
  ME33K: Display Contract
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to unit of measure conversions.
  User Exits and BAdIs: If custom logic is involved, check for any user exits or BAdIs that may affect unit of measure conversions.
  
  By following these steps, you should be able to identify and resolve the cause of the O1589 error in SAP.