How To Fix DGEXC408 - UN number &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: DGEXC - Messages for Exceptions to DG Regulations

• Message number: 408

• Message text: UN number &1 already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DGEXC408 - UN number &1 already exists ?

  The SAP error message DGEXC408 indicates that a UN (United Nations) number you are trying to enter already exists in the system. This error typically occurs in the context of Dangerous Goods Management within SAP, where UN numbers are used to identify hazardous materials.
  Cause:
  The error arises when you attempt to create or modify a record for a dangerous good that uses a UN number that is already assigned to another material or record in the system. This is a validation check to ensure that each UN number is unique within the database.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing UN Numbers:
  
  Use the transaction code /N/SCWM/DG or /N/SCWM/DG1 to access the Dangerous Goods Management screen.
  Search for the UN number in question to see if it is already assigned to another material or record.
  
  
  
  Modify Existing Record:
  
  If the UN number is already in use and you need to create a new record, consider using a different UN number that is not currently in use.
  
  
  
  Review Material Master:
  
  Check the material master records to see if the UN number is linked to a specific material. You can do this using transaction code MM03 (Display Material) and entering the relevant material number.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or your organization's guidelines on Dangerous Goods Management to ensure compliance with regulations and proper handling of UN numbers.
  
  
  
  Contact SAP Support:
  
  If you believe this error is occurring in error or if you need further assistance, consider reaching out to your SAP support team or SAP directly for help.
  
  
  
  Related Information:
  
  UN Numbers: These are four-digit numbers assigned by the United Nations to identify hazardous substances and articles. Each UN number corresponds to a specific type of dangerous good.
  Dangerous Goods Management: This is a module within SAP that helps organizations manage the handling, storage, and transportation of hazardous materials in compliance with legal regulations.
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP for managing dangerous goods, such as /N/SCWM/DG for Dangerous Goods Management.
  
  By following these steps, you should be able to resolve the DGEXC408 error and continue with your work in SAP.