How To Fix WG024 - Missing unit of measure cannot be found without material number or EAN

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 024

• Message text: Missing unit of measure cannot be found without material number or EAN

What causes this issue?

No useful unit of measure can be determined without a useful order item
identifier.

System Response

The order item is not posted.

How to fix this error?

Transmit a correct identifier for each order item. The following are
permitted at the moment:

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

PROTECT
002,,supplier's material number
003,,EAN
006,,material number
ENDPROTECT
<(>,<)>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WG024 - Missing unit of measure cannot be found without material number or EAN ?

  Certainly! Here's a detailed explanation for the SAP error message WG024: "Missing unit of measure cannot be found without material number or EAN":
  
  Error Message:
  WG024 - Missing unit of measure cannot be found without material number or EAN
  
  Cause:
  This error occurs when you try to enter or process a transaction in SAP that requires a unit of measure (UoM) but the system cannot determine the correct unit of measure because:
  
  The material number is missing or not provided.
  The EAN (European Article Number) or barcode is missing or not provided.
  The system relies on either the material master data or the EAN to identify the unit of measure.
  Without either the material number or EAN, SAP cannot find the corresponding unit of measure in the system.
  
  This typically happens in processes like goods receipt, goods issue, or sales order entry where the unit of measure is mandatory and linked to the material master or EAN master data.
  
  When does it occur?
  
  When creating or processing documents that require a unit of measure but the material number or EAN is not entered.
  When scanning or entering an EAN that is not linked to any material.
  When the material master data is incomplete or missing the unit of measure.
  When the system tries to determine the unit of measure from the EAN but the EAN is not maintained or linked.
  
  
  Solution:
  
  
  Provide Material Number or EAN:
  
  Ensure that either the material number or the EAN is entered in the transaction.
  If you are scanning a barcode, verify that the barcode corresponds to a material in the system.
  
  
  
  Maintain Material Master Data:
  
  Check the material master (transaction MM03) to ensure the unit of measure is maintained correctly.
  Verify that the base unit of measure and alternative units of measure are properly defined.
  
  
  
  Maintain EAN Master Data:
  
  Use transaction MM02 or MM03 to check if the EAN is assigned to the material.
  If the EAN is missing, maintain it in the material master under the EAN/UPC codes tab.
  
  
  
  Check Configuration:
  
  Verify if the system requires EAN or material number for the process.
  In some cases, configuration settings in logistics execution or sales and distribution modules may enforce this check.
  
  
  
  Data Entry Training:
  
  Train users to always enter either the material number or the EAN when required.
  Avoid leaving these fields blank if the process depends on them.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM03 - Display Material Master
  MM02 - Change Material Master
  MM01 - Create Material Master
  VL01N / VL02N - Create/Change Outbound Delivery (where EAN might be scanned)
  MIGO - Goods Movement (where unit of measure is critical)
  
  
  
  Tables:
  
  MARA - General Material Data
  MARM - Units of Measure for Material
  EAN - EAN/UPC codes linked to materials
  
  
  
  Notes and SAP Help:
  
  Check SAP Notes related to EAN and unit of measure issues.
  SAP Help Portal for material master and unit of measure handling.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Missing material number or EAN prevents SAP from determining the unit of measure.
  
  
  Effect
  System throws error WG024 and stops the transaction.
  
  
  Solution
  Enter material number or EAN; maintain material master and EAN data properly.
  
  
  Prevention
  Ensure master data completeness and user training on data entry requirements.
  
  
  
  
  If you provide more context (e.g., transaction code, process step), I can help tailor the solution further!