How To Fix AXT_MODEL199 - Logical link &1 is already defined in the navigation bar customizing

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL -

• Message number: 199

• Message text: Logical link &1 is already defined in the navigation bar customizing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_MODEL199 - Logical link &1 is already defined in the navigation bar customizing ?

  The SAP error message AXT_MODEL199 indicates that there is a conflict in the navigation bar customization where a logical link is already defined. This typically occurs when you attempt to create or modify a logical link in the navigation bar that has already been defined elsewhere in the system.
  Cause:
  
  Duplicate Definition: The logical link you are trying to create or modify already exists in the navigation bar configuration.
  Customizing Issues: There may be inconsistencies or errors in the navigation bar customizing settings.
  Transport Issues: If you are transporting changes from one system to another, there may be conflicts with existing definitions.
  
  Solution:
  
  
  Check Existing Definitions:
  
  Go to the navigation bar customizing transaction (usually SAP GUI transaction code SAP_BC_NAV or SPRO).
  Look for the logical link that is causing the conflict. You can search for the logical link name to see where it is defined.
  
  
  
  Modify or Delete the Existing Link:
  
  If the logical link is not needed, you can delete it or modify it to resolve the conflict.
  If it is needed, consider renaming the new logical link you are trying to create to avoid the conflict.
  
  
  
  Review Customizing Settings:
  
  Ensure that your customizing settings are consistent and do not have overlapping definitions.
  Check for any transport requests that may have introduced conflicts.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to navigation bar customizing for any specific guidelines or best practices.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for navigation bar customizing, such as SPRO for configuration and SE80 for development.
  SAP Notes: Check SAP Notes for any known issues or patches related to navigation bar customizing.
  User Roles: Ensure that the user roles and authorizations are correctly set up, as this can sometimes lead to issues with navigation links.
  
  By following these steps, you should be able to identify the cause of the AXT_MODEL199 error and implement a solution to resolve it.