Does Vendo need to whitelist IPs if we change hosts servers? Follow No, as long as the callbacks remain unchanged. Please use the comments section below to ask any additional information. You can also contact us at firstname.lastname@example.org Related articles I don’t use NATS, can I use my own affiliate and user management system? How do I integrate a Dating site? Vendo’s client services team asked me to configure a biller called "Vendo Services" in NATS but I only see a biller called "Vendo". Is it the same? How do I integrate Vendo in NATS? Can I choose the language of the payment page?