How To Fix /SAPAPO/FOT405 - Conversion factors from unit &1 to &2 are different in products &3 and &4

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/FOT -

• Message number: 405

• Message text: Conversion factors from unit &1 to &2 are different in products &3 and &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/FOT405 - Conversion factors from unit &1 to &2 are different in products &3 and &4 ?

  The SAP error message /SAPAPO/FOT405 indicates that there is a discrepancy in the conversion factors between two products when trying to perform a function that involves unit of measure (UoM) conversion. This typically occurs in the context of Advanced Planning and Optimization (APO) when dealing with product master data.
  Cause:
  The error arises when:
  
  Different Conversion Factors: The conversion factors for the same unit of measure between two products are not consistent. For example, if Product A has a conversion factor of 1.5 from unit X to Y, and Product B has a conversion factor of 2.0 from the same unit X to Y, this inconsistency will trigger the error.
  Master Data Issues: There may be issues in the product master data where the units of measure are not defined correctly or consistently across different products.
  Data Migration Issues: If data has been migrated from another system or if there have been recent changes in the product master data, inconsistencies may arise.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Product Master Data:
  
  Go to the product master data for both products (using transaction codes like /SAPAPO/MAT1 for product master).
  Verify the unit of measure settings and conversion factors for both products.
  Ensure that the conversion factors for the same units are consistent across the products.
  
  
  
  Update Conversion Factors:
  
  If you find discrepancies, update the conversion factors to ensure they match for the relevant units of measure.
  Make sure to maintain the correct conversion factors in the product master data.
  
  
  
  Consistency Check:
  
  Perform a consistency check on the product master data to identify any other potential issues.
  Use transaction codes like /SAPAPO/CC (Consistency Check) to help identify and rectify any inconsistencies.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to unit of measure handling in APO for any additional guidance or best practices.
  
  
  
  Testing:
  
  After making changes, test the process again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): Understanding how UoMs are defined and used in SAP APO is crucial. Each product can have multiple UoMs, and conversion factors are used to convert quantities from one UoM to another.
  Master Data Management: Proper management of master data is essential in SAP systems to avoid such errors. Regular audits and checks can help maintain data integrity.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional solutions related to this error message.
  
  By following these steps, you should be able to resolve the error and ensure that your product master data is consistent and accurate.