How To Fix FF857 - G/L account has already been assigned to a tax code in Customizing.

SAP Error Message - Details

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 857

• Message text: G/L account has already been assigned to a tax code in Customizing.

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

This error message is output if you define a particular tax code in the
G/L account master record for example V1 and also the tax code to which
it may be posted in Customizing. It is also a contradiction because you
must only continue to post to the account with the tax code that is
defined here. It is of course temporarily useful because if a particular
tax code is defined in the G/L account master record, only this can
still be permitted during posting and it is set as the default value,
however you can also maintain the tax code in Customizing and change the
G/L account master record later, this means activating it, for example -
defining the G/L account master record in the tax category and thus
activating the check by means of Customizing.

How to fix this error?

Please check <DS:TRAN.F_VC_T007_GL_ACC>Customizing</>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FF857 - G/L account has already been assigned to a tax code in Customizing. ?

  The SAP error message FF857 indicates that a General Ledger (G/L) account has already been assigned to a tax code in the system's configuration (Customizing). This typically occurs when you attempt to assign a tax code to a G/L account that is already linked to another tax code.
  Cause:
  
  Duplicate Assignment: The G/L account is already assigned to a different tax code in the system.
  Configuration Error: There may be an error in the configuration settings where the same G/L account is mistakenly linked to multiple tax codes.
  Incorrect Tax Code Usage: The tax code you are trying to assign may not be appropriate for the G/L account based on the business rules or tax regulations.
  
  Solution:
  
  
  Check Existing Assignments:
  
  Go to the SAP Customizing Implementation Guide (IMG) and navigate to Financial Accounting (New) > General Ledger Accounting (New) > Master Data > G/L Accounts > G/L Account Creation > Assign Tax Codes to G/L Accounts.
  Look for the G/L account in question and see which tax code(s) it is currently assigned to.
  
  
  
  Modify Assignments:
  
  If you need to change the tax code for the G/L account, you may need to remove the existing assignment first. Ensure that this change complies with your accounting policies and tax regulations.
  After removing the existing assignment, you can then assign the new tax code to the G/L account.
  
  
  
  Consult with Finance Team:
  
  Before making changes, consult with your finance or accounting team to ensure that the changes align with your organization's financial practices and compliance requirements.
  
  
  
  Testing:
  
  After making the changes, perform a test transaction to ensure that the G/L account and tax code are functioning as expected without triggering the error message.
  
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like OB40 (for tax code assignment) or FS00 (to view G/L account details) to help in troubleshooting.
  Documentation: Review SAP documentation or help files related to tax code assignments and G/L account configurations for more detailed guidance.
  Support: If the issue persists or if you are unsure about making changes, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  By following these steps, you should be able to resolve the FF857 error and ensure that your G/L account is correctly configured with the appropriate tax code.