How To Fix FKKINV640 - Enter type of tax date

FKKINV640 - Overview

• Message type: E = Error

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

• Message number: 640

• Message text: Enter type of tax date

What causes this issue?

The <DS:DE.TAX_DATE_TYPE_KK>type of tax date</> is not filled.

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?

For the <DS:DE.TAX_DET_TYPE_KK>tax calculation type</> <LS>Internal Tax
Calculation</> or <LS>External Tax Calculation with Internal Handling</>
, you have to enter a type of tax date.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FKKINV640 - Details

• The SAP error message FKKINV640 ("Enter type of tax date") typically occurs in the context of invoicing or billing processes within the SAP system, particularly in the area of contract accounts receivable and payable (FI-CA). This error indicates that the system requires a specific type of tax date to be entered, which is necessary for tax calculations and reporting.
  
  Cause:
  The error is usually triggered when:
  
  A transaction is being processed that requires a tax date, but the system does not have the necessary information.
  The configuration for tax date types is incomplete or not set up correctly in the system.
  The user has not entered a required field related to tax date in the invoice or billing document.
  
  
  Solution:
  To resolve the FKKINV640 error, you can take the following steps:
  
  
  Check Input Fields: Ensure that all required fields related to tax date are filled in correctly. Look for fields like "Tax Date" or "Type of Tax Date"