The service's invoicing solution, known as Vertex Invoice IQ provides Vertex for e-Commerce users with the ability to generate compliant invoices and send them to their customers for confirmed (completed) transactions, as well as issuing compliant credit notes for refunds.

The service's Invoicing features enables users to comply with international country-specific regulations which include:

• Sequential numbering
• Displaying amounts in the local currency
• Provide a signature of the supplier or the authorised representative
• Displaying the accounting code of the service you are selling

The response from the Confirm Transaction request includes a link to a HTML version of the invoice in the invoice_image_url field. You can also use the link to embed it in your store or you can add it to your existing email functions.

Invoices are created when a Confirm Transaction request is sent to the service. The information used in the invoice is based on what was returned in the response to a Store Transaction request.

The final layout of the invoice can vary depending on settings and regulatory requirements. See Invoice Details and Variations.

Invoice integration options

Invoices are created in HTML and PDF so you can use whatever suits your needs best.

An invoice is sent to the email specified in the buyer_email field.

The HTML version of the invoice is included in the response that is returned by the Confirm Transaction request.

Invoice processing

The following graphic describes an example process flow showing how an invoice is sent:

The process flow is as follows. This is a simplified example and steps can vary substantially in a real implementation.

1. Buyer places goods in basket. The buyer places some goods in their basket but do not go to the checkout yet. The Store Transaction request is sent to the service and tax information and a transaction key is returned.
2. The service processes the transaction. The Store Transaction request is sent to the service.
3. Tax and other information is returned in the response to the Store Transaction request. The Transaction Key is also returned in the response.
4. The buyer completes the transaction. They complete checkout and purchase the goods.
5. The transaction is confirmed and the invoice is sent. A Confirm Transaction request is sent to Vertex for e-Commerce. This request uses the Transaction Key created in the previous step. The invoice is sent per settings to the buyer or merchant. An invoice is sent to the specified party, the email specified in the buyer_email field.
6. Buyer receives invoice.

Types of invoices

Invoices can vary per country and type. Details and variations are described in the Invoice Details and Variations topic.

UI settings

You can configure settings in the UI, as described in the Invoice Settings UIs topic.

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