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Message type: E = Error
Message class: WS - Supplier Billing Document
Message number: 056
Message text: Conversion factor replaced by one already defined
The conversion factor of the <GL:base_unit_of_measure>base unit of
measure</> in the billing document unit which you entered does not agree
with the conversion factor defined in the system.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
INCLUDE NA_EINGABE_PRUEFEN
DEFINE &OBJEKTE& = 'Units of measure'
INCLUDE NA_EINK_CUST
<DS:SIMG.SIMG_CFMENUOLMSOMSC>Check units of measure</>
ENDIF
Error message extract from SAP system. Copyright SAP SE.
WS056
- Conversion factor replaced by one already defined ?Certainly! Here's a detailed explanation for the SAP error message WS056: Conversion factor replaced by one already defined:
Error Message
WS056: Conversion factor replaced by one already defined
Cause
This error occurs in SAP when you try to define or maintain a unit of measure (UoM) conversion factor that conflicts with an existing conversion factor already defined for the same unit of measure pair.
In other words, SAP already has a conversion factor defined between two units of measure, and you are attempting to enter a different conversion factor for the same unit pair. SAP does not allow multiple different conversion factors for the same unit pair because it would create ambiguity in quantity conversions.
When does it occur?
Units of measure in SAP are linked by conversion factors that define how to convert quantities from one unit to another (e.g., from KG to G, or from L to ML). Each pair of units can have only one conversion factor.
If you try to enter a conversion factor for a unit pair that already exists, SAP will overwrite the existing factor and issue the warning WS056 to inform you that the previous factor is replaced.
Check existing conversion factors:
Decide if replacement is intended:
Avoid duplicate entries:
Check for data consistency:
Use SAP standard tools:
Aspect | Details |
---|---|
Error | WS056: Conversion factor replaced by one already defined |
Cause | Attempt to define a conversion factor for a unit pair that already has a conversion factor |
Effect | Existing conversion factor is overwritten; SAP issues warning WS056 |
Solution | Verify existing conversion factors in CUNI, confirm if replacement is intended, avoid duplicates |
Transactions | CUNI (Units of Measure), MM02 (Material Master Change) |
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