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Checking of duplicate invoices in LIV

Logistics : MM and its sub-modules (WM, IM, PO, LIS)

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Checking of duplicate invoices in LIV

Postby TP » Sun Oct 20, 2002 8:44 pm

In standard SAP, the checking of duplicate invoices in LIV is base on the criteria as below:
1) Company code
2) Document date
3) Reference
4) Currency
5) Vendor
6) Amount

Is there a way to disregard (6) Amount from the checking? It means that two invoices will be considered as duplicate as long as (1) to (5) above are the same.

Please advise and correct me if I m wrong on the above.
Currently, I am having version 4.5B.

Thank you.

Postby Guest » Mon Oct 21, 2002 7:26 pm

Let me get this right.

You have two invoices, one for $100 and one for $200 and you want the system to say this is the same invoice????

I don't think so.

I think you should rethink your logic.

Alan Prouse

Postby TP » Mon Oct 21, 2002 8:36 pm

Thanks Alan Prouse.

But in Account Payable, the example that given by you will be regarded as duplicate invoice. Why the treatment is different in LIV? What is the rationale of this? :?:


Postby TP » Mon Oct 21, 2002 9:06 pm

Additional to the above:

If the two invoices actually issued by the same vendor, same ref no (invoice no), same invoice date, same currency, but different amount, obviously this is something wrong with the vendor. Why wouldn't the system reject it ?

Duplicate Invoice

Postby ugly kid joe » Tue Oct 22, 2002 2:23 am

I agree with you that the vendor has duplicated the invoice if you have the same reference document for the invoices. The change in just the amount doesn't prove the validity of the subsequent Invoice and hence it should be logically dismissed by ythe system as duplicate.

ugly kid joe

Duplicate invoices

Postby amirw » Tue Oct 22, 2002 3:04 am


The criterias for duplicate check as were presented in the first message are not correct. When one enters reference the profgram checks only reference, vendor and company.
When one does not enter reference then the program checks all the other fields. (see "set check for duplicate invoices" in customization)


Postby TP » Tue Oct 22, 2002 3:41 am

Thanks everyone that contribute ideas.

But I had tested & even though I had entered reference field, the system still check on amount field. Btw, I cannot find "set check for duplicate invoices" in customization. My company is using SAP version 4.5B. Is it due to different version?

Kindly advise.

This is SAP message that I get when I have co.code + doc date + ref + vendor + amount are the same:

Please check whether invoice already entered under accounting doc. no.
Message no. M8 108


The system is required to perform a check to prevent duplication of
invoice entry for the vendor whose invoice you are currently entering.

An invoice with data that corresponds to your data for the following
fields has already been entered in accounting numbered XXXXXXXXXX:
o Company code
o Document date
o Reference
o Currency
o Vendor
o Amount

It is likely that the same invoice will be entered twice.

Thank you.

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