FAQ
Does it work with CS-Cart and Multi-Vendor?
Section titled “Does it work with CS-Cart and Multi-Vendor?”Yes. In Multi-Vendor the marketplace owner can use one Amazon account for everyone or let each vendor connect their own.
Do I need to be an Amazon developer or pay for API access?
Section titled “Do I need to be an Amazon developer or pay for API access?”You register as a private developer for your own seller account (Professional selling plan, primary user) and authorize your own app; Amazon documents this for private applications and does not charge for it. There is no Kavio Labs account in the middle: your keys and refresh token stay in your store. Amazon reviews developer profiles and can ask questions.
Does it need AWS keys or request signing?
Section titled “Does it need AWS keys or request signing?”No. Amazon’s current SP-API documentation authorizes calls with the Login with Amazon access token only.
Does it support Fulfilled by Amazon (FBA)?
Section titled “Does it support Fulfilled by Amazon (FBA)?”Not in 1.0. It lists, prices and imports merchant fulfilled offers. FBA orders are not imported.
Which Amazon stores?
Section titled “Which Amazon stores?”The 23 stores of the Selling Partner API: US, CA, MX, BR, UK, DE, FR, IT, ES, NL, BE, IE, SE, PL, TR, AE, SA, EG, ZA, IN, JP, AU and SG. One connection per store.
Why does the order import mention a deprecated API?
Section titled “Why does the order import mention a deprecated API?”Amazon deprecated Orders API v0 on 2026-01-28 and removes it on 2027-03-27. The connector uses the new v2026-01-01 API by default and keeps v0 as an option until it is removed.
Which CS-Cart versions are supported?
Section titled “Which CS-Cart versions are supported?”4.17.2 to 4.21.x.
Where are my credentials stored?
Section titled “Where are my credentials stored?”In your own database, encrypted. The key is derived from your store’s secret in config.php, so a database dump alone does not reveal them. They are never shown again after saving.
Does it send data to Kavio Labs?
Section titled “Does it send data to Kavio Labs?”No. The add-on talks to Amazon only (Login with Amazon and the Selling Partner API). The license check sends your domain name to the Kavio Labs license server once a day (Kavio Labs downloads).
What happens when Amazon is down?
Section titled “What happens when Amazon is down?”Jobs fail, wait and are retried automatically (5 minutes up to 12 hours). Nothing is lost and nothing is sent twice.
What happens when the license expires?
Section titled “What happens when the license expires?”New work stops (no new documents, rates, syncs or payments). Work already under way is still finished.
How do I get updates?
Section titled “How do I get updates?”Install the new package over the old one. See Installation.
How do I get support?
Section titled “How do I get support?”Contact us through https://cs-cart.kaviolabs.com.
Still stuck?
Section titled “Still stuck?”Work through the troubleshooting guide, then contact support with your CS-Cart version, edition, PHP version and the add-on version (1.0.0).