Setting up integrations

Connect Shopify

Connect Shopify with just your shop domain, through the App Store or OAuth. What Rechnungskit imports, billing through Shopify App Pricing, shipping tax on mixed carts, multiple markets and legal entities, and Shopify POS.

Connect WooCommerce

Rechnungskit connects WooCommerce without a plugin, through the REST API with signed webhooks and a 4-hourly catch-up. Setup, prepayment, post-purchase upsells, Germanized vouchers and limits.

Connect Shopware 6

Rechnungskit connects Shopware 6 through the Admin API, without a plugin in your shop. Orders, payment and shipping status are fetched every 15 minutes; the Flow Builder can trigger an instant fetch.

Connect Stripe

Connect Stripe with one restricted key; Rechnungskit sets up the webhook itself. Screenshots, the full permission table, Stripe Billing subscriptions, invoices with a payment term, service periods and deferred revenue, fees and payouts in DATEV with a booking example, and limits like Stripe Connect.

Connect Mollie

Connect Mollie with your API key, plus an optional organization access token for payout reconciliation and the fee per payment. Webhooks, refunds, chargebacks, DATEV, and how Mollie Invoicing differs from Rechnungskit.

Taking over from Stripe Billing: invoices first, subscriptions at the end of the period

Taking over from Stripe Billing step by step: hand invoicing to Rechnungskit, move subscriptions at the end of their period with the existing payment mandate, and what to check afterwards.

Connect PayPal

Connect PayPal through your own live REST app with Transaction Search switched on. What you need, the setup step by step, common errors, and how Rechnungskit fetches payments and books fees and withdrawals for DATEV.

Connect Klarna

Connect Klarna with the API credentials from the Klarna merchant portal. Klarna has no webhooks, so Rechnungskit pulls captures, refunds, fees and payouts every 4 hours and creates the invoices.

Connect GoCardless

GoCardless collects SEPA direct debits. Rechnungskit creates the invoice once a collection is confirmed, archives it under GoBD and books fees and payouts for DATEV. How to set up the token and the webhook.

Connect Unzer

Connect Unzer with your private key. Rechnungskit registers the webhook, verifies every payment against the Unzer API and imports fees from the monthly ETN CSV, which you upload in the report.

Ma Marketplaces (Amazon, Kaufland, Otto, eBay)

Direct connections to Amazon, Kaufland, Otto and eBay are planned but not available yet. How to invoice marketplace sales with Rechnungskit today, through the REST API or as manual documents.

Connect Memberspot (automatic course access)

With the Memberspot integration, Rechnungskit grants buyers access to your Memberspot school after payment and revokes it when a subscription ends or a purchase is fully refunded. No webhook code of your own.

Connect Ghost (automatic membership)

With the Ghost integration, buyers become members of your Ghost publication with the right tier after paying in the Rechnungskit checkout, with German e-invoice and DATEV export and no Stripe account in Ghost. Setup, tiers, payment links and limits.

Connect Meta Ads (conversion tracking with consent)

Rechnungskit reports every purchase server-side to your Meta ad account through the Conversions API, only after the buyer's consent in the checkout. Setup, test events, the optional browser pixel and deduplication with your own pixel.

Google tag in the checkout (Google Ads and Analytics 4)

Measure purchases in the Rechnungskit checkout for Google Ads and Google Analytics 4. You enter only IDs, the tag loads only after consent, and no names or email addresses go to Google.

TikTok pixel in the checkout

Measure purchases in the Rechnungskit checkout for your TikTok ads. You enter only the pixel ID, the pixel loads only after consent, and no names or email addresses go to TikTok.