Facturette sends no e-mail. It is Shopify that writes to your customers, using your own notification templates — Facturette simply adds a download link to them.

As soon as an invoice is issued, its link is written onto the order. One thing is left for you to do, once and for all: paste the snippet below into the e-mail template of your choice.

The link opens the invoice from your own storefront, with no account and no password: your customer clicks and the PDF downloads. It stays valid for 30 days.

In the Shopify admin:

Start with “Shipping confirmation” : it is the most reliable place. That e-mail goes out well after payment, so the invoice is always ready when it is sent.

The same snippet works in every order notification. It never shows a dead link: while the invoice is not ready, it shows a waiting sentence instead.

{% if order.metafields.facturette.customer_invoice_url %}
  <p>
    <a href="{{ order.metafields.facturette.customer_invoice_url }}">
      Your invoice {{ order.metafields.facturette.invoice_number }}
    </a><br>
    This link is valid for 30 days from the date of issue.
  </p>
{% else %}
  <p>Your invoice is being prepared and will be sent to you within a few minutes.</p>
{% endif %}

If you have never changed the “Shipping confirmation”, it shows two buttons side by side: View your order and Track order with Shop. Here is how to slot a third button between them, on a blue background.

In the template's code, look for these two lines:

<td class="button__cell--separator"></td>
<td class="button__cell button__cell--shop-app" width="50%">

Paste the block below just before those two lines, deleting nothing.

{% if order.metafields.facturette.customer_invoice_url %}
<td class="button__cell--separator"></td>
<td class="button__cell" width="33%" bgcolor="#2C6ECB" style="background-color: #2C6ECB;">
  <a href="{{ order.metafields.facturette.customer_invoice_url }}" class="button__text" style="color: #ffffff;">Download my invoice</a>
</td>
{% endif %}

The blue is the #2C6ECB written twice in the block (once for bgcolor, once for style— both are needed, mail clients do not all read the same one). Replace them with the colour of your choice.

You can, and it is even the e-mail your customers read most. But it goes out within seconds of payment, sometimes before the invoice has been issued: those customers will see the waiting sentence, not the link.

The safest option is therefore to put the snippet in both notifications: the order confirmation for those whose invoice is already ready, the shipping confirmation for everyone else.

The invoice also appears on its own in the Shopify customer account, on the order status page — the one your e-mails' “View your order” buttons already point to. No snippet to paste, no setting: the block ships with the app.

Your customer finds their invoice number there, and the same download link, just below the payment details.

The link carries a unique key, specific to that invoice. Anyone holding the link can open the invoice — which names and addresses your customer. Treat it as the document itself: send it to your customer, do not publish it.

After 30 days the link stops working and shows a message explaining that the document is no longer available. Your invoices themselves stay under Invoices and on the Shopify order.