How To Fix IDFISK056 - Supplier document number &1 already exists for supplier &2

IDFISK056 - Overview

• Message type: E = Error

• Message class: IDFISK -

• Message number: 056

• Message text: Supplier document number &1 already exists for supplier &2

What causes this issue?

You entered a supplier document number that has already been assigned to
another document. In a given fiscal year, a supplier cannot send more
than one document with the same document number.

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?

Enter a valid supplier document number.

You can customize the type of this message in the <LS>Manage Your
Solution</> app, under <LS>Configure Your Solution -> Finance ->
Localization -> General Settings -> Change Message Control</>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

IDFISK056 - Details

• The SAP error message IDFISK056 indicates that there is a duplicate supplier document number for a specific supplier. This error typically occurs when you attempt to create or update a supplier document (such as a purchase order, invoice, or other supplier-related documents) and the system detects that the document number you are trying to use already exists for the specified supplier.
  
  Cause:
  
  Duplicate Document Number: The most common cause is that the document number you are trying to use has already been assigned to another document for the same supplier.
  Incorrect Number Range: The number range configuration for supplier documents may not be set up correctly, leading to overlaps.
  Data Entry Error: There may have been a manual entry error where the same document number was entered for different transactions.
  System Migration Issues: If data was migrated from another system, there may be conflicts with existing document numbers.
  
  
  Solution:
  
  Check Existing Documents: Verify if the document number