Support & contact

We are the people who build the app, not a ticket queue in front of it.

Email	agency@4sellers.de
Languages	German and English
Hours	Monday to Friday, business days in Germany
Response time	TBD_SUPPORT

4SELLERS GmbH · Nelkenweg 6a · 86641 Rain am Lech · Germany

Answering yourself, faster

Most questions are answered by two pages:

• Troubleshooting — sorted by how often each cause actually occurs.
• FAQ — including how the app interacts with Shopify's own shipping rates, and how it behaves in a multi-currency store.

What to put in your message

The more of this you send, the more likely the first reply is the answer:

1. Your store domain (your-shop.myshopify.com).
2. The cart in question — which products, quantities, destination postal code and country.
3. The preview result for that cart. The preview shows per rule which criterion failed; a screenshot of it saves a whole round trip.
4. What you expected and what happened instead — for example "Express should be offered at €9.90, but no option appears at all".
5. Your plan (Free, Basic, Advanced) and, if you know it, your Shopify plan — some symptoms come from Shopify's carrier service eligibility rather than from the app, see Troubleshooting.

Data protection questions

For questions about processing, your rights, or a data processing agreement under Art. 28 GDPR, use the same address. Details: Privacy Policy.