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

/SAPAPO/FOT404 - Overview

• 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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/SAPAPO/FOT404 - Details

• 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