How To Fix WE301 - Specify a weight EAN prefix

WE301 - Overview

• Message type: E = Error

• Message class: WE - Messages for EAN Customizing and for EAN management in MM_BD

• Message number: 301

• Message text: Specify a weight EAN prefix

What causes this issue?

You have entered a check algorithm for weight EANs but no weight EAN
prefix.

System Response

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

How to fix this error?

Enter the EAN prefix that has been predefined for the current number
category.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WE301 - Specify a weight EAN prefix ?

  SAP Error Message:
  WE301 - Specify a weight EAN prefix
  
  
  Cause:
  The error message WE301 occurs during the processing of IDocs (Intermediate Documents) related to shipping or logistics, particularly when handling material or product data that involves weights. The system expects a weight EAN prefix (European Article Number prefix) to be specified but it is missing or not maintained.
  In many SAP logistics or EDI scenarios, the weight of a product or package is encoded with a specific EAN prefix to identify the type of data (e.g., weight, quantity, batch number). If this prefix is not defined or maintained in the system, SAP cannot correctly interpret or process the weight information, leading to this error.
  
  When does it occur?
  
  During IDoc processing for messages like DESADV (Delivery Advice), ORDERS (Purchase Orders), or other logistics-related IDocs.
  When the system tries to read or write weight information encoded with an EAN prefix but the prefix is not specified in