How To Fix SDME_MDB327 - A header area already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: SDME_MDB - DME: Maintenance Dialog Builder

• Message number: 327

• Message text: A header area already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDME_MDB327 - A header area already exists ?

  The SAP error message SDME_MDB327: A header area already exists typically occurs in the context of the SAP Sales and Distribution (SD) module, particularly when dealing with the creation or processing of sales documents, such as sales orders or deliveries. This error indicates that the system is trying to create a new header record when one already exists for the transaction being processed.
  Cause:
  
  Duplicate Document Creation: The error often arises when there is an attempt to create a new document (like a sales order) while a header for that document already exists in the database.
  Session Management Issues: If multiple sessions are open, and one session is trying to create a document while another session has already created it, this can lead to conflicts.
  Incomplete Transaction: If a previous transaction was not completed properly, it might leave a header record in an inconsistent state.
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might inadvertently lead to attempts to create duplicate headers.
  
  Solution:
  
  Check Existing Documents: Before creating a new document, check if a document with the same reference already exists. You can do this by searching for existing sales orders or deliveries in the relevant transaction codes (e.g., VA03 for sales orders).
  Clear Incomplete Transactions: If there are incomplete transactions, resolve them. You can use transaction codes like SM12 to check for locked entries or SM21 for system logs to identify issues.
  Session Management: Ensure that you are not trying to create the same document in multiple sessions. Close any unnecessary sessions and try again.
  Debugging Custom Code: If the error is related to custom code, review the code for any logic that might be causing the creation of duplicate headers. Debugging the process can help identify the root cause.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that might address this specific error. Sometimes, SAP releases notes that provide fixes or workarounds for known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as VA01 (Create Sales Order), VA02 (Change Sales Order), and VA03 (Display Sales Order).
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it is affecting business operations.
  Documentation: Review SAP documentation related to sales document processing for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.