FB60 Duplicate invoices are not checked anymore

[medkhaled]

Hello experts,

In my system S4, FB60 Duplicate invoices are not checked anymore. before the check was working fine.

Now I checked, if the fields relevants for this check have been updated or changer, but it seems that there no way to change them, it's the standard behavior of SAP :

If the Reference Document Number field (BKPF-XBLNR) is filled up the following fields will be checked to idnetify duplicate invoices:

• Company Code(BUKRS)
• Vendor(LIFNR)
• Currency(WAERS)
• Invoice/Document Date(BLDAT)
• Reference document number(XBLNR)

If the Reference Document Number field (BKPF-XBLNR) is not filled up the following fields will be checked to idnetify duplicate invoices:

• Company Code(BUKRS)
• Vendor(LIFNR)
• Currency(WAERS)
• Invoice/Document Date(BLDAT)
• Amount in document currency(WRBTR)

Can you please confirm this ?

Now, what other points can I check ?

May be make a debug with a developer to make to check if there is a specific ABAP that bypass this check ?

Thank you for your help

Regards,

[RaymondGiuseppi]

Read also KBA 3286631 - Duplicate invoice check - FAQ.