How To Fix /SAPAPO/FOT404 - Conversion not defined between unit of measure &1 and &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/FOT -

• Message number: 404

• Message text: Conversion not defined between unit of measure &1 and &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/FOT404 - Conversion not defined between unit of measure &1 and &2 ?

  The SAP error message /SAPAPO/FOT404 Conversion not defined between unit of measure &1 and &2 typically occurs in the SAP Advanced Planning and Optimization (APO) module when there is an attempt to convert between two units of measure (UoM) for which no conversion factor has been defined in the system.
  Cause:
  
  Missing Conversion Factor: The primary cause of this error is that there is no defined conversion factor between the two specified units of measure (UoM) in the system.
  Incorrect UoM Usage: The units of measure being used in the transaction may not be appropriate for the context, leading to the system not being able to find a conversion.
  Configuration Issues: There may be issues in the configuration of the UoM settings in the system.
  
  Solution:
  
  
  Define Conversion Factors:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) in SAP.
  Check if a conversion factor exists between the two units of measure mentioned in the error message.
  If it does not exist, create a new entry to define the conversion factor between the two units of measure.
  
  
  
  Check UoM Settings:
  
  Ensure that the units of measure are correctly defined in the system.
  Verify that the UoM are correctly assigned to the relevant materials or products.
  
  
  
  Review Master Data:
  
  Check the material master data to ensure that the correct units of measure are assigned.
  Ensure that the UoM used in the planning book or data view is consistent with the UoM defined in the material master.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on UoM configuration and management.
  
  
  
  Testing:
  
  After making changes, test the transaction again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, UoM is a critical aspect of material management and logistics. It defines how quantities of materials are measured and can include units like pieces, kilograms, liters, etc.
  Material Master: The material master record contains all the information related to a material, including its units of measure.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide additional guidance related to UoM conversions.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP functional consultant or technical support for further assistance.