How To Fix WS404 - The same document number has been assigned more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 404

• Message text: The same document number has been assigned more than once

What causes this issue?

Document number &V1& has been assigned more than once.

System Response

No document number is available and the function is terminated.

How to fix this error?

Contact your system administrator.

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 WS404 - The same document number has been assigned more than once ?

  Certainly! Here's a detailed explanation for the SAP error message WS404: "The same document number has been assigned more than once":
  
  Error Message: WS404
  Text: The same document number has been assigned more than once.
  
  
  Cause:
  This error occurs when SAP detects that a document number, which should be unique within a certain context (such as a company code, fiscal year, or document type), has been assigned multiple times. This typically happens during document posting or number assignment processes.
  Common causes include:
  
  Number Range Overlap or Misconfiguration: The number range intervals for document numbers are overlapping or incorrectly maintained, causing duplicate numbers to be generated.
  Manual Number Assignment: When users manually enter document numbers, they might reuse an existing number.
  Parallel Posting or Batch Jobs: Simultaneous postings or batch jobs might try to assign the same document number if the number range object is not properly locked or synchronized.
  Custom Code or User Exits: Custom developments or user exits