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	Usually within two business days

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 how your data is processed or about your rights, use the same address. Details: Privacy Policy.