How To Fix WE304 - Specify first digit in EAN prefix

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 304

• Message text: Specify first digit in EAN prefix

What causes this issue?

The first digit in the EAN prefix is a blank. This is not allowed.

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, for example, leading zeros.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WE304 - Specify first digit in EAN prefix ?

  SAP Error Message:
  
  WE304 - Specify first digit in EAN prefix
  
  Cause:
  The error message WE304 occurs during the processing of IDocs (Intermediate Documents) when the system expects an EAN (European Article Number) prefix to start with a specific first digit, but this digit is missing or not specified correctly.
  EAN prefixes are used to identify the country or organization responsible for the barcode. The first digit of the EAN prefix is crucial for validation and correct processing of the barcode data.
  In other words, the system is validating the EAN code and finds that the first digit of the EAN prefix is missing or invalid in the data being processed.
  
  When does it occur?
  
  During inbound or outbound IDoc processing involving material master or product data.
  When EAN codes are being validated or transferred.
  When the EAN prefix is incomplete or incorrectly maintained in the master data or IDoc segments.
  
  
  Solution:
  
  
  Check the EAN code in the IDoc data:
  
  Verify that the EAN code (barcode) being sent or received contains a valid first digit in the prefix.
  The first digit should correspond to a valid EAN prefix (usually a country or GS1 prefix).
  
  
  
  Maintain correct EAN prefix in master data:
  
  Go to the material master (transaction MM02) and check the EAN/UPC codes.
  Ensure that the EAN codes start with a valid first digit.
  If necessary, correct or add the EAN code with the proper prefix.
  
  
  
  Check EAN prefix configuration:
  
  In some cases, the system might have custom validations or user exits that check the EAN prefix.
  Verify if any custom code or validation logic is enforcing this rule and adjust accordingly.
  
  
  
  Reprocess the IDoc:
  
  After correcting the EAN code, reprocess the IDoc to confirm the error is resolved.
  
  
  
  
  Additional Information:
  
  EAN (European Article Number) is a 13-digit barcode standard (also known as GTIN-13).
  The first 3 digits of the EAN code represent the GS1 prefix, which identifies the country or region.
  The first digit of the prefix is important for validation and must be present.
  SAP uses this validation to ensure data integrity in logistics and supply chain processes.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WE304 - Specify first digit in EAN prefix
  
  
  Cause
  Missing or invalid first digit in EAN prefix in IDoc or master data
  
  
  Solution
  Correct the EAN code to include a valid first digit; maintain proper EAN in material master; reprocess IDoc
  
  
  Transaction
  MM02 (Material Master), WE02/WE19 (IDoc monitoring/testing)
  
  
  
  
  If you need further assistance, please provide the IDoc segment data or the specific process where the error occurs.