How To Fix >6018 - Invalid change of correspondence header for correspondence type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: >6 - Purchasing Document

• Message number: 018

• Message text: Invalid change of correspondence header for correspondence type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message >6018 - Invalid change of correspondence header for correspondence type &1 ?

  The SAP error message 6018 ("Invalid change of correspondence header for correspondence type &1") typically occurs in the context of SAP's correspondence management functionality, which is used for generating and managing correspondence documents (like letters, emails, etc.) in various modules such as Sales and Distribution (SD), Customer Relationship Management (CRM), and others.
  Cause:
  The error message indicates that there is an issue with the correspondence header configuration or the data being processed. Common causes include:
  
  Invalid Header Data: The correspondence header data being used does not match the expected format or values for the specified correspondence type.
  Configuration Issues: There may be inconsistencies or misconfigurations in the correspondence type settings in the SAP system.
  Data Integrity Issues: The data being processed may have been altered or corrupted, leading to an invalid state for the correspondence header.
  Authorization Issues: The user may not have the necessary permissions to change the correspondence header.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Correspondence Type Configuration:
  
  Go to the configuration settings for the correspondence type in the SAP system (transaction code SPRO).
  Ensure that the correspondence type is correctly configured, including the header settings.
  
  
  
  Validate Header Data:
  
  Review the data being used for the correspondence header. Ensure that all required fields are populated correctly and that the data adheres to the expected formats.
  
  
  
  Review Change Logs:
  
  Check if there have been any recent changes to the correspondence type or related configurations that might have led to this issue.
  
  
  
  User Authorizations:
  
  Verify that the user attempting to make the change has the necessary authorizations to modify the correspondence header.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide patches or updates.
  
  
  
  Testing:
  
  If possible, replicate the issue in a test environment to better understand the conditions under which the error occurs.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (for configuration), SOST (for monitoring sent messages), and others that may be relevant to correspondence management.
  Documentation: Review SAP documentation related to correspondence management for best practices and configuration guidelines.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the cause of the error message 6018 in your SAP system.