How To Fix WS590 - No unique document can be determined for invoice no. &1 and doc. date &2

WS590 - Overview

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 590

• Message text: No unique document can be determined for invoice no. &1 and doc. date &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS590 - No unique document can be determined for invoice no. &1 and doc. date &2 ?

  Certainly! Here's a detailed explanation for the SAP error message WS590:
  
  SAP Error Message WS590
  Message Text:
  No unique document can be determined for invoice no. &1 and doc. date &2
  
  Cause
  This error occurs during invoice verification or posting when SAP tries to find a unique accounting document based on the invoice number and document date but finds more than one document matching these criteria. In other words, the system expects a single unique document for the given invoice number and date, but multiple documents exist, causing ambiguity.
  Common reasons include:
  
  Duplicate invoice numbers entered for different documents.
  Multiple postings with the same invoice number and date.
  Invoices posted in different company codes or fiscal years but with overlapping invoice numbers.
  Incorrect or inconsistent data entry in the invoice reference fields.
  Customizing or configuration issues that do not enforce uniqueness of invoice numbers.
  
  
  Solution
  To resolve the WS590 error, consider the following steps:
  
  
  Check for Duplicate Invoices:
  
  Use transaction FB03 or MRBR to search