How To Fix WS400 - ************** for function group WLF_GET_INVOICE_NUMBER ***********

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 400

• Message text: ************** for function group WLF_GET_INVOICE_NUMBER ***********

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 WS400 - ************** for function group WLF_GET_INVOICE_NUMBER *********** ?

  Certainly! Here's a detailed explanation regarding the SAP error message WS400 related to the function group WLF_GET_INVOICE_NUMBER:
  
  SAP Error Message: WS400
  Context: Occurs in function group WLF_GET_INVOICE_NUMBER
  
  1. Cause of the Error
  
  WS400 is a standard SAP error message related to the invoice number determination process.
  The error typically occurs when the system cannot determine or generate a valid invoice number during the processing of an invoice document.
  This can happen due to:
  Missing or incorrect configuration in the number range objects for invoice numbers.
  The number range interval for invoice numbers is exhausted or not maintained.
  Issues in the function module WLF_GET_INVOICE_NUMBER which is responsible for fetching or generating the invoice number.
  Custom enhancements or user-exits that interfere with the standard number assignment logic.
  Authorization issues preventing the number range object from being accessed or updated.
  Database locks or inconsistencies in the number range tables.
  
  
  
  
  2. Solution / How to Fix
  Step 1: Check Number Range Configuration
  
  Go to transaction SNRO or SNUM (depending