XXL Sales OS
How would you like to explore the platform?
Try it free Step into a realistic demo network, in any role. You’re in within two minutes. Instant · no card required Request a tailored quote Put together, feature by feature, what you need – we’ll send you a concrete, itemised quote. Within 3 working days · no obligationIntegrations
XXL Sales OS is no island. It connects to your invoicing and card payments through ready-made integrations, and to your webshop and warehouse management through open APIs – with every partner company linking its own account, under its own contract.
Invoicing, payment provider and mail server can be connected per partner company – so money and invoices go exactly where they should.
On saving, the system immediately checks the connection with the provider – rather than discovering a problem with the first invoice issued.
Keys and passwords are stored encrypted, API keys only as hashes. They cannot even be read back.
Invoices are created in the partner company’s own invoicing tool, from the platform’s data.
Even without a connected provider, a document is still created – in “pending” status, so nothing is lost.
The buyer pays through the partner’s own payment provider – the money goes straight to them.
Test (sandbox) mode for every provider – try everything before going live, with no real money moving.
Products, prices and stock come from the platform; orders flow back into the chain.
WooCommerce, Shopify, Shoprenter, Unas, Magento, PrestaShop or another platform: your existing shop connects through the open API with a custom integration – for which we provide a tailored quote.
A two-way connection with your external warehouse management system – both systems always know the same thing.
Email, SMS and translation – in your own name, in the user’s language.
In and out – as the work requires.
For developers
The APIs are standard REST endpoints with a machine-readable schema. Outgoing webhooks arrive signed with HMAC-SHA256, so the receiving system can be certain the notification came from us and was not altered in transit.
X-SafeBox-Signature: sha256=9f2c…e71a
Content-Type: application/json
{
"event": "goods.received",
"version": "v1",
"sandbox": false,
"sent_at": "2026-09-28T09:41:07+02:00",
"data": {
"receipt_id": 1842,
"sku": "PS-VLT-H2",
"product_name": "ProSecure Vault Home",
"quantity": 24,
"order_id": 5307
}
}Tell us what you work with – we’ll assess the integration and send you a tailored quote.
Free trial
A fictitious yet meticulously realistic international network awaits – with partners, orders, commissions, fault tickets and training content. Step into any role and see the platform from any point in the chain.
