How To Fix ME778 - Error in quantity conversion from sales unit to stockkeeping unit

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 778

• Message text: Error in quantity conversion from sales unit to stockkeeping unit

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ME778 - Error in quantity conversion from sales unit to stockkeeping unit ?

  The SAP error message ME778, which states "Error in quantity conversion from sales unit to stockkeeping unit," typically occurs during processes that involve the conversion of quantities between different units of measure, such as when creating purchase orders, sales orders, or during inventory management.
  Cause:
  The error can arise due to several reasons, including:
  
  
  Unit of Measure Configuration: There may be an issue with the configuration of the units of measure in the material master. The sales unit and stockkeeping unit may not be properly defined or linked.
  
  
  Conversion Factor Issues: The conversion factor between the sales unit and stockkeeping unit may be missing or incorrectly defined. This can lead to SAP being unable to convert quantities correctly.
  
  
  Material Master Data: The material master data may not be set up correctly, particularly in the "Units of Measure" section. If the sales unit and stockkeeping unit are not aligned, this error can occur.
  
  
  Inconsistent Data: There may be inconsistencies in the data related to the material, such as incorrect entries in the sales organization data or plant data.
  
  
  Solution:
  To resolve the ME778 error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the "Basic Data" and "Sales Org. Data" views.
  Ensure that the sales unit and stockkeeping unit are correctly defined and that the conversion factor is specified.
  
  
  
  Review Unit of Measure Settings:
  
  Check the unit of measure settings in the material master. Ensure that the sales unit and stockkeeping unit are correctly linked and that the conversion factor is valid.
  You can do this by navigating to the "Units of Measure" section in the material master.
  
  
  
  Maintain Conversion Factors:
  
  If the conversion factor is missing, you can maintain it by using transaction code MM02 to edit the material master and add the necessary conversion factors.
  
  
  
  Check for Inconsistencies:
  
  Review any related documents (like purchase orders or sales orders) to ensure that there are no inconsistencies in the data that could be causing the error.
  
  
  
  Consult Documentation:
  
  If the issue persists, consult SAP documentation or reach out to your SAP support team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), ME21N (Create Purchase Order), ME22N (Change Purchase Order).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Unit of Measure Configuration: Familiarize yourself with the configuration of units of measure in SAP, which can be found in the SAP Help documentation.
  
  By following these steps, you should be able to identify and resolve the cause of the ME778 error in SAP.