Oct 26, 2026
Sylius Payments & Webhooks on Shared Hosting: Checkout Callbacks, Outbound TLS, and Gateway Credentials
Sylius relies on the Payum library to broker payment requests and gateway notifications, which makes outbound cURL, TLS, and public callback URLs the usual points of failure on shared hosting. This guide walks through diagnosing checkout stalls, fixing webhook delivery, and verifying gateway credentials using only hosting account tools.