How To Fix WH042 - ISO code & for units of measurement not found in system

SAP Error Message - Details

• Message type: E = Error

• Message class: WH - Messages for store physical inventory (DRS)

• Message number: 042

• Message text: ISO code & for units of measurement not found in system

What causes this issue?

The ISO code is not known in the system and the SAP code cannot
therefore be converted into the corresponding SAP code.

How to fix this error?

Maintain the ISO code in the system and start processing this
intermediate document again.
Maintain the units of measurement with the corresponding ISO
codes in Customizing under<DS:SIMG.SIMG_CFMENUOLMSOMSC>check
units of measurement</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WH042 - ISO code & for units of measurement not found in system ?

  Certainly! Here's a detailed explanation for the SAP error message WH042 - ISO code & for units of measurement not found in system:
  
  Error Message
  WH042 - ISO code & for units of measurement not found in system
  
  Cause
  This error occurs when the system tries to process or validate a unit of measurement (UoM) that is associated with an ISO code, but the corresponding ISO code entry for that unit of measurement is missing or not maintained in the system.
  In SAP, units of measurement can be linked to ISO codes to standardize and facilitate data exchange, especially in logistics and warehouse management processes. If the ISO code for a particular unit of measurement is not maintained, the system cannot recognize or process it properly, leading to this error.
  
  When does it occur?
  
  During warehouse management transactions (e.g., goods receipt, goods issue, transfer postings).
  When integrating with external systems or interfaces that use ISO codes for units.
  When creating or processing material master data or handling units where UoM ISO codes are required.
  During conversion or validation of units in warehouse management or inventory management.
  
  
  Solution
  
  
  Maintain the ISO code for the unit of measurement:
  
  Go to transaction CUNI (Units of Measurement).
  Find the unit of measurement that is causing the error.
  Check if the ISO code is maintained for this unit.
  If not, maintain the correct ISO code for the unit of measurement.
  
  
  
  Verify the unit of measurement in the material master:
  
  Use transaction MM03 to check the material master.
  Verify the base unit of measure and any alternative units.
  Ensure that the units used have corresponding ISO codes maintained.
  
  
  
  Check customizing for units of measurement:
  
  Use transaction SPRO ? Logistics Execution ? Warehouse Management ? Master Data ? Define Units of Measurement.
  Ensure that the units used in warehouse management are properly defined and linked to ISO codes.
  
  
  
  If the unit is custom or non-standard:
  
  You may need to create a new unit of measurement and assign an appropriate ISO code.
  Alternatively, map the custom unit to a standard unit with a valid ISO code.
  
  
  
  
  Additional Information
  
  ISO codes for units of measurement are standardized codes defined by the International Organization for Standardization (ISO), typically following ISO 80000 or ISO 1000 standards.
  Maintaining ISO codes helps in data consistency, especially when exchanging data between SAP and external systems or when using SAP EDI (Electronic Data Interchange).
  The error message uses a placeholder "&" which will be replaced by the actual ISO code or unit of measurement causing the issue.
  This error is common in warehouse management (WM) and extended warehouse management (EWM) scenarios where precise unit handling is critical.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing ISO code for a unit of measurement in the system.
  
  
  Solution
  Maintain the ISO code for the unit in transaction CUNI or via customizing (SPRO).
  
  
  Related Areas
  Warehouse Management (WM), Material Master (MM), Units of Measurement (CUNI), EDI.
  
  
  Transactions
  CUNI, MM03, SPRO (customizing)
  
  
  
  
  If you need further assistance, please provide the specific unit of measurement or ISO code causing the error, and I can help guide you through the exact steps.