How To Fix /SAPAPO/ATP_BOP623 - Unable to convert unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP_BOP -

• Message number: 623

• Message text: Unable to convert unit of measure

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ATP_BOP623 - Unable to convert unit of measure ?

  The SAP error message /SAPAPO/ATP_BOP623 Unable to convert unit of measure typically occurs in the Advanced Planning and Optimization (APO) module when there is an issue with the conversion of units of measure (UoM) during the availability check or during the planning process. This error can arise due to several reasons, and understanding the cause is crucial for finding a solution.
  Causes:
  
  
  Missing Unit of Measure Conversion: The system may not have a defined conversion factor between the units of measure used in the transaction. For example, if you are trying to convert from "pieces" to "boxes" and there is no conversion defined, this error will occur.
  
  
  Incorrect Master Data: The material master data may have incorrect or incomplete unit of measure settings. This includes the base unit of measure and alternative units of measure.
  
  
  Configuration Issues: There may be issues in the configuration settings related to units of measure in the APO system.
  
  
  Inconsistent Data: There could be inconsistencies in the data between the APO and the ERP system, especially if the systems are not synchronized properly.
  
  
  Unit of Measure Not Active: The unit of measure you are trying to use may not be active or valid in the system.
  
  
  Solutions:
  
  
  Check Unit of Measure Settings:
  
  Go to the material master (transaction MM03) and check the unit of measure settings. Ensure that the base unit of measure and any alternative units of measure are correctly defined.
  Verify that the conversion factors between different units of measure are correctly maintained.
  
  
  
  Define Conversion Factors:
  
  If there are missing conversion factors, you can define them in the material master under the "Units of Measure" view.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the APO system related to units of measure. Ensure that the settings align with the requirements of your business processes.
  
  
  
  Synchronize Data:
  
  If you suspect data inconsistencies between the APO and ERP systems, consider running synchronization jobs or checks to ensure that the data is consistent across both systems.
  
  
  
  Check for Active Units:
  
  Ensure that the unit of measure you are trying to use is active in the system. You can check this in the configuration settings or by consulting with your SAP Basis team.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM03 (Material Master), CUNI (Unit of Measure Conversion), and /SAPAPO/ATC (Advanced Planning and Optimization) to investigate and resolve the issue.
  Documentation: Refer to SAP documentation for detailed information on unit of measure handling in APO.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.