Posts: 1
Registered: ‎11-29-2017

Why invoice number is not unique?

[ Edited ]



As per the information given in the link, invoice number is a unique identification value assigned to a transaction by a merchant.

If customer pays amount through hosted page and that transaction gets declined then customer can pay through another credit card for same invoice.

So how can I maintain it as unique?


Authorize.Net Expert
Posts: 39
Registered: ‎11-28-2017

Re: Why invoice number is not unique?

The field is meant for the merchant to have a link to ANet and is not validated by ANet.

Try generating a unique identifier for each transaction and passing it in the request.