Important: the old app goes offline on 1 August 2026
The legacy app (v1) is being phased out and goes offline on 1 August 2026. Switch to version 2 before that date to keep your Peppol invoicing uninterrupted.
Why an all-new app?
The first version of our Wix app worked with webhooks and a manual API key that you had to manage yourself. Based on feedback from our users, we rebuilt the app from scratch.
Version 2 is not an update of the old app, but a separate, new app. Onboarding, KYC verification and invoicing now run directly through Wix, and you connect SendPol via a secure OAuth authorization instead of an API key. That is why you need to switch once: install the new app, complete the OAuth connection and only then remove the old app.
Version 1 vs. Version 2
The most important differences between the old and the new app at a glance.
| Feature | Version 1 (old) | Version 2 (new) |
|---|---|---|
| Installation & connection | Webhook installation with manual API key | OAuth connection, no API key to enter anymore |
| Onboarding & KYC | Via SendPol | Fully via Wix — onboarding and KYC run directly through Wix |
| Invoicing | Via SendPol | Through Wix itself |
| Authentication & tokens | API key you manage yourself | Tokens are managed and refreshed automatically |
| Dashboard | Older dashboard with API key management | Renewed dashboard, integrated into your Wix admin |
| Connection status | No status display | Live status: connected, test mode, processing or not connected |
| Security | No token validation on load | Session is validated each time the dashboard loads |
| Support | Via SendPol | Unchanged — support continues via SendPol |
What is new in version 2?
The biggest improvements you benefit from right away.
Onboarding & KYC via Wix
The entire onboarding and KYC verification now runs directly through Wix.
Invoicing via Wix
Your invoicing now runs through Wix itself.
OAuth connection
You connect SendPol to Wix via a secure authorization instead of copying and pasting an API key. Tokens are managed and refreshed automatically.
Live connection status
The dashboard shows immediately whether your connection is active, in test mode or needs attention.
This is what the new app looks like
A renewed dashboard with a live connection status, KYC verification and your document activity in one overview.


Migration guide in 4 steps
Follow these steps to switch from version 1 to version 2. Complete them in one go and there is in principle no interruption.
- 1
Install the new SendPol app (v2)
Install the new app in your Wix admin. This is a separate app alongside your old version.
- 2
Configure v2 via OAuth
Complete the OAuth connection to securely connect SendPol to your store. No API key needed anymore.
- 3
Check the connection status
Make sure the connection status shows "connected" and that v2 works correctly.
- 4
Only then remove the old app (v1)
Is everything working in the new app? Only then remove the old SendPol app from your Wix admin.
Save your invoice history before removing v1
Your invoice history is not transferred to v2. So export or save important documents before you remove the old app.
Frequently asked questions about the migration
Ready to switch?
Create your SendPol account or log in and install the new Wix app today.
Need help? Get in touch