How To Fix 6B135 - Invoice number & & already exists

6B135 - Overview

• Message type: E = Error

• Message class: 6B - Real estate correspondence messages

• Message number: 135

• Message text: Invoice number & & already exists

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.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 6B135 - Invoice number & & already exists ?

  The SAP error message 6B135 indicates that an invoice number you are trying to use already exists in the system. This typically occurs during the invoice creation process when the system detects a duplicate invoice number.
  
  Cause:
  
  Duplicate Invoice Number: The most common cause is that the invoice number you are trying to enter has already been used in the system.
  Incorrect Number Range Configuration: The number range for invoices may not be set up correctly, leading to conflicts.
  Data Entry Error: There may be a typographical error in the invoice number being entered.
  Multiple Users: If multiple users are creating invoices simultaneously, one user may have already created an invoice with the same number.
  
  
  Solution:
  
  Check Existing Invoices: Verify if the invoice number already exists in the system. You can do this by searching for the invoice in the relevant transaction (e.g., using transaction codes like FB03 for displaying invoices).
  Use a Different Invoice Number: If the