How To Fix CONV188 - Document is not the header of a document structure

SAP Error Message - Details

• Message type: E = Error

• Message class: CONV - Messages in Connection with the Converter

• Message number: 188

• Message text: Document is not the header of a document structure

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CONV188 - Document is not the header of a document structure ?

  The SAP error message CONV188 ("Document is not the header of a document structure") typically occurs when there is an issue with the document structure in SAP, particularly when dealing with document types that have a hierarchical structure, such as invoices, purchase orders, or other transactional documents.
  Cause:
  
  Incorrect Document Reference: The error often arises when a document is being processed or referenced incorrectly. For example, if a line item is being treated as a header or if the system is trying to access a document that is not the main header document.
  Data Inconsistency: There may be inconsistencies in the data, such as missing or incorrect references between header and item data.
  Document Type Issues: The document type being processed may not be set up correctly in the system, leading to confusion about which document is the header.
  User Input Errors: Manual entry errors when inputting document numbers or other identifiers can lead to this issue.
  
  Solution:
  
  Check Document Structure: Verify that the document you are trying to process is indeed a header document. Ensure that you are not mistakenly referencing a line item or a related document.
  Review Document Types: Ensure that the document type is correctly configured in the system. Check the settings in the relevant customizing transactions (e.g., SPRO) to ensure that the document types are set up correctly.
  Data Consistency Check: Use transaction codes like SE16 or SE11 to check the database tables related to the document. Look for inconsistencies between header and item tables (e.g., EKKO for purchase orders and EKPO for line items).
  Recreate the Document: If the document is corrupted or has missing data, consider recreating it from scratch to ensure that all necessary information is included.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  Debugging: If you have access to debugging tools, you can analyze the program logic to identify where the error is being triggered and why the system is not recognizing the document as a header.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME23N (Display Purchase Order), FB03 (Display Document), or VF03 (Display Billing Document) to view the document structure.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to document management and structure to better understand how headers and items are defined and processed.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP Basis or technical team for further investigation.