How To Fix M8106 - Only one document header exists

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 106

• Message text: Only one document header 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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message M8106 - Only one document header exists ?

  The SAP error message M8106 "Only one document header exists" typically occurs in the context of material document processing, particularly when dealing with goods movements or inventory management. This error indicates that the system expects multiple line items or documents but has only found one document header.
  Cause:
  
  Single Document Header: The error arises when the system is trying to process a transaction that requires multiple document headers, but only one is available.
  Incorrect Document Selection: The user may have selected a document that does not meet the criteria for the operation being performed.
  Data Integrity Issues: There may be issues with the data in the database, such as missing or incomplete entries that lead to the system not recognizing multiple headers.
  Configuration Issues: There could be configuration settings in the SAP system that are not aligned with the expected behavior for the transaction.
  
  Solution:
  
  Check Document Selection: Ensure that you are selecting the correct document that has multiple line items or headers. Verify the document number and its associated items.
  Review Transaction Type: Make sure that the transaction type you are trying to execute is appropriate for the document you are working with.
  Data Consistency Check: Run consistency checks on the relevant tables to ensure that there are no missing or corrupted entries. This may involve checking the material document tables (e.g., MKPF, MSEG).
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  Configuration Review: If you have access, review the configuration settings related to the document types and ensure they are set up correctly.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or SAP directly for assistance. They may have additional insights or patches available.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A, MB1B, or MB1C, which are used for various goods movements.
  Documentation: Review SAP documentation related to inventory management and goods movements for a better understanding of how document headers and line items are processed.
  User Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to diagnose and resolve the M8106 error in SAP.