How To Fix C0103 - A message with no. & has already been posted

SAP Error Message - Details

• Message type: E = Error

• Message class: C0 - PP-PI: Messages for PI Sheet and Syntax Checker

• Message number: 103

• Message text: A message with no. & has already been posted

What causes this issue?

Via the selected process message, inspection results are to be
reported to QM. However, a message with message number &V1&
has already been transferred to QM.

System Response

The current process message is not transferred to QM.

How to fix this error?

INCLUDE 'NA_SYSVERW' OBJECT DOKU ID TX LANGUAGE E

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C0103 - A message with no. & has already been posted ?

  The SAP error message C0103, which states "A message with no. & has already been posted," typically occurs in the context of document processing, particularly when dealing with financial transactions or message postings in SAP. This error indicates that a message or document with the specified number has already been recorded in the system, and the system is preventing a duplicate entry.
  Cause:
  
  Duplicate Posting: The most common cause of this error is an attempt to post a message or document that has already been posted. This can happen if the user tries to reprocess a transaction that has already been completed.
  System Configuration: In some cases, the system may be configured to prevent duplicate entries for certain types of messages or documents.
  User Error: Users may inadvertently attempt to post the same message multiple times, especially in high-volume transaction environments.
  
  Solution:
  
  Check Existing Messages: Before attempting to post a new message, check the system for existing messages with the same number. You can do this by using transaction codes like FB03 (Display Document) or MB03 (Display Material Document) to view the details of the posted document.
  Use Unique Identifiers: Ensure that each message or document you are trying to post has a unique identifier. If you are generating message numbers programmatically, make sure the logic prevents duplicates.
  Review Posting Logic: If you are using custom programs or scripts to post messages, review the logic to ensure it correctly handles existing messages and avoids duplicates.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the transaction or module you are working with.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that can help you investigate the issue, such as FB03, MB03, or SE16 (Data Browser) to check the underlying tables.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that address known issues.
  User Training: Ensure that users are trained on the proper procedures for posting messages and handling transactions to minimize the risk of duplicate postings.
  
  By following these steps, you should be able to resolve the C0103 error and prevent it from occurring in the future.