How To Fix FS818 - Company code &1 already registered as plant for &2 &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: FS - Messages from Tax Routines / Prenumbered Checks

• Message number: 818

• Message text: Company code &1 already registered as plant for &2 &3 &4

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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Smart SAP Assistant

• What is the cause and solution for SAP error message FS818 - Company code &1 already registered as plant for &2 &3 &4 ?

  The SAP error message FS818 indicates that a company code is already registered as a plant for a specific controlling area. This typically occurs when you attempt to assign a plant to a controlling area or company code that has already been assigned.
  Cause:
  The error arises due to the following reasons:
  
  Duplicate Assignment: The company code you are trying to assign to a plant is already linked to that plant in the system.
  Configuration Issues: There may be a misconfiguration in the settings related to the plant and company code assignments.
  Data Integrity: The system is designed to prevent duplicate entries to maintain data integrity.
  
  Solution:
  To resolve the FS818 error, you can follow these steps:
  
  
  Check Existing Assignments:
  
  Go to the transaction code OX18 (or SPRO -> Enterprise Structure -> Assignment -> Logistics General -> Assign Plant to Company Code).
  Verify if the company code is already assigned to the plant in question.
  
  
  
  Remove Duplicate Assignment:
  
  If you find that the company code is already assigned and you need to change it, you may need to remove the existing assignment before making a new one.
  Ensure that you have the necessary authorizations to make changes.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the system to ensure that there are no conflicting entries.
  Make sure that the plant and company code are correctly set up in the system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for more detailed information on plant and company code assignments.
  
  
  
  Contact Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  OX18: Assign Plant to Company Code
  SPRO: Access to the SAP Reference IMG for configuration settings.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  Data Consistency: Always ensure that your data entries are consistent and that you follow the proper procedures for assigning plants and company codes to avoid such errors in the future.
  
  
  By following these steps, you should be able to resolve the FS818 error and successfully manage your plant and company code assignments in SAP.