How To Fix FF731 - Tax code & may only contain one assignment line

FF731 - Overview

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 731

• Message text: Tax code & may only contain one assignment line

What causes this issue?

For direct postings to tax accounts, only <DS:GLOS.Steuerkennzeichen>tax
codes</> containing exactly one tax item may be used. Tax codes with
several rates or a nondeductible portion are not allowed here.

System Response

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

How to fix this error?

Use a different tax code.
For direct postings to a tax account, you might have to define a
separate tax code for which only one line with a percentage rate other
than zero is active in percentage rate maintenance. All other lines must
be inactive.
For more information, see SAP Note 869540.
INCLUDE FI_NA_F5

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FF731 - Tax code & may only contain one assignment line ?

  The SAP error message FF731 indicates that there is an issue with the tax code configuration in the system. Specifically, it means that the tax code you are trying to use has more than one assignment line, which is not allowed. This error typically occurs during the posting of financial documents where tax codes are involved.
  
  Cause:
  
  Multiple Assignments: The tax code in question has been assigned to multiple tax categories or conditions, which is not permissible.
  Configuration Error: There may be a misconfiguration in the tax code settings in the SAP system.
  Data Entry Error: The user may have inadvertently selected a tax code that is not properly configured for the transaction being processed.
  
  
  Solution:
  
  
  Check Tax Code Configuration:
  
  Go to the transaction code OBYZ (or SPRO -> Financial Accounting -> Financial Accounting Global Settings -> Tax on Sales/Purchases -> Basic Settings -> Check Tax Codes).
  Review the tax code in question and ensure that it has