How To Fix WS057 - Conversion between & and & effected using factor 1

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 057

• Message text: Conversion between & and & effected using factor 1

What causes this issue?

A billing document price quantity has been defined for the item but you
have not defined conversion factor
Billing document unit &V1& --> Billing document price unit &V2&

System Response

1 &V1& is converted as 1 &V2&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS057 - Conversion between & and & effected using factor 1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Message:
  WS057 - Conversion between & and & effected using factor 1
  
  Cause:
  This message is an informational or warning message generated during unit of measure (UoM) conversions in SAP. It indicates that a conversion between two units of measure has been performed using a conversion factor of 1.
  In other words, the system tried to convert a quantity from one unit to another, but the conversion factor between these units is 1, meaning the units are effectively treated as equivalent for the purpose of the conversion.
  This can happen when:
  
  The two units are identical or considered equivalent in the system.
  The units are different but the conversion factor has been maintained as 1 in the unit of measure conversion table.
  No specific conversion factor has been defined, so the system defaults to 1.
  
  
  Explanation:
  
  The message shows the two units involved in the conversion (e.g., from unit A to unit B).
  The system informs you that the conversion was done using a factor of 1, which means the quantity remains the same numerically.
  This is usually not an error but an informational message to alert you that no actual scaling was applied during the conversion.
  
  
  Solution / Action:
  
  
  Check the unit of measure master data:
  
  Verify the units involved in the conversion and their conversion factors in transaction CUNI (Units of Measure).
  
  
  Verify if the conversion factor is correct:
  
  If the units are supposed to be different (e.g., KG to G), the conversion factor should not be 1 (should be 1000 in this example). If the factor is 1, update it accordingly.
  
  
  If the units are indeed equivalent:
  
  No action is needed. The message is just informational.
  
  
  Suppress the message if needed:
  
  Since this is an informational message, it can be ignored or suppressed if it clutters logs or output.
  
  
  
  Related Information:
  
  Transaction CUNI: Maintain Units of Measure and their conversion factors.
  Unit of Measure Conversion: SAP uses conversion factors to convert quantities between different units.
  Message Class WS: Related to Warehouse Management and unit conversions.
  Common scenarios:  
  
  Conversion between "PC" (pieces) and "PC" (pieces) — factor 1.  
  Conversion between "KG" and "KG" — factor 1.  
  Conversion between "M" (meters) and "CM" (centimeters) — factor should be 100, not 1.
  
  
  
  
  Summary:
  
  Message WS057 is informational, indicating a conversion between two units using factor 1.
  Check if the conversion factor is correct in unit master data.
  Correct the factor if necessary; otherwise, no action is required.
  
  
  If you want, I can help you with the exact steps to check or change the unit conversion factors in SAP.