How To Fix FQ666 - Program cannot calculate tax for this item

FQ666 - Overview

• Message type: E = Error

• Message class: FQ - Payment Requests and Payment Program

• Message number: 666

• Message text: Program cannot calculate tax for this item

What causes this issue?

You have entered different tax codes for the different G/L account
items and you wanted the program to calculate the tax for these tax
codes. To do this, you have chosen the <ls>Tax Amounts</> function on
the entry screen for G/L account items and flagged the <ls>Calculate
Tax</> field.

System Response

The program cannot calculate the tax in this case.

How to fix this error?

Enter the tax amount manually.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FQ666 - Program cannot calculate tax for this item ?

  The SAP error message FQ666, which states "Program cannot calculate tax for this item," typically occurs during the processing of financial transactions, particularly in the context of tax calculation in accounts payable or accounts receivable. This error can arise due to various reasons, and understanding the cause is essential for finding a solution.
  Causes of Error FQ666
  
  
  Missing Tax Codes: The tax code for the item may not be defined in the system, or it may not be assigned to the relevant material or service.
  
  
  Incorrect Tax Configuration: The tax configuration in the system may be incorrect. This includes settings in the tax procedure, tax types, or tax calculation rules.
  
  
  Invalid Master Data: The master data for the vendor, customer, or material may be incomplete or incorrect, leading to issues in tax determination.
  
  
  Tax Jurisdiction Issues: If the transaction involves multiple tax jurisdictions, there may be issues with how taxes are calculated across those jurisdictions.
  
  
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