Post pandemic, the retail industry is making buzz with applications of metaverse, NFT, using Drones delivery and Social Commerce etc. A lot of SaaS vendors such as payment processing offer webhooks for integrations with their customers and their partners. They do it because:  Static IP is dead simple than VPN to configure    Remote Access to branch POS for vendors is not easy if in case of any issues Here are the key challenges in using plain Static IP in branch WAN for webhook type of integrations:1. Published ‘Static IP’ fails: If WAN link provided by an Internet service provider A (ISP A) fails at peak time, the application completely stalls even though there are backup WAN links with static IPs from another ISPs B and/or ISP C. Same IP failover using SD-WAN + Cloud Secure Web Gateway (for Public IP) , Public IP provided through Cloud Service Providers (CSP) are inherently resilient even in the case of ISP outage due to solid AS (Autonomous system) Number based BGP (Border Gateway Protocol) routing implementations.