How To Fix 8B669 - Duplicate NF(e) number &1 &2 &3 for vendor &4

8B669 - Overview

• Message type: E = Error

• Message class: 8B - Localization (Brazil)

• Message number: 669

• Message text: Duplicate NF(e) number &1 &2 &3 for vendor &4

What causes this issue?

You have entered a number for the Nota Fiscal (Electronica) that already
exists for this vendor and document date in the system.

System Response

You cannot save the Nota Fiscal (Electronica) if you have set the
message type "E" or "X" for this message.

How to fix this error?

Check the number of the Nota Fiscal (Electronica).

Procedure for System Administrators

If you want the system to respond differently to duplicate NF(e) numbers
for the same vendor, change the setting for this message (view
J_1B_T160M_V).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 8B669 - Duplicate NF(e) number &1 &2 &3 for vendor &4 ?

  The SAP error message 8B669 indicates that there is a duplicate NF(e) number for a vendor in the system. This error typically arises in the context of electronic invoicing or tax reporting, particularly in Brazil, where NF-e (Nota Fiscal Eletrônica) is a digital invoice used for tax purposes.
  
  Cause:
  The error occurs when:
  
  An attempt is made to create or process an NF-e with a number that already exists for the specified vendor.
  The NF-e number is not unique within the specified time frame or for the vendor in question.
  There may be issues with the configuration of the NF-e number ranges or the vendor master data.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing NF-e Numbers:
  
  Verify the NF-e numbers that have already been issued for the vendor. You can do this by querying the relevant tables in SAP (e.g., the NFE tables) or using transaction codes that allow you to view NF-e