Hello, I've built a webhook to receive notifications from eBay. Our server blocks all traffic from all IP addresses unless they've been whitelisted. Does anyone know what IP address notifications will come from so that I can whitelist it? Will the IP remain static, or do I need to whitelist a range of addresses? Thanks!
HI @amazing_outlet, Notification listener must be hosted on port 80 or 443. You will get the **com.ebay.kernel.service.invocation.client.exception.ConnectionTimeoutException** if you runs notification listener on a non-standard port like 81 which is blocked by the eBay firewall and/or ISP (Internet Service Provider). Notification Delivery URL must be accessible on the public internet ( i.e. not running on localhost or behind a firewall). **REF:**
https://ebaydts.com/eBayKBDetails?KBid=1261 Best Regards, eBay Developer Support