How To Fix FKKINV290 - Tax included in amount indicator not allowed to be selected

FKKINV290 - Overview

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 290

• Message text: Tax included in amount indicator not allowed to be selected

What causes this issue?

You can only set the <DS:DE.TAX_INCLUDED_KK>Tax Included in Amount</>
indicator for billing document items that are <DS:DE.POSTREL_KK>relevant
for posting</> or for which a <DS:DE.PRINT_SUBSTITUTE_KK>substitute
group for invoice printing</> is entered.

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?

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 FKKINV290 - Tax included in amount indicator not allowed to be selected ?

  The SAP error message FKKINV290, which states "Tax included in amount indicator not allowed to be selected," typically occurs in the context of invoicing and billing processes within the SAP system, particularly in the Contract Accounts Receivable and Payable (FI-CA) module. This error indicates that there is a configuration or data issue related to how tax is being handled in the invoice.
  
  Cause:
  
  
  Configuration Settings: The error often arises due to incorrect configuration settings in the tax calculation or invoice processing settings. Specifically, the system may not allow the selection of the "Tax included in amount" indicator for certain types of transactions or account types.
  
  
  Document Type Restrictions: Certain document types may not support tax-inclusive pricing. If the document type used for the invoice does not allow for tax to be included in the amount, this error will occur.
  
  
  Account Type: The account type associated with the transaction may not be configured to handle