How to Migrate a Cloud Service That Uses an External IP Allowlist for Callbacks

A partner may send callbacks only to a registered destination address. A cloud move can change the public endpoint and interrupt incoming events.

What to check

Identify callback URLs, DNS, TLS certificates, inbound firewall rules, source allowlists, retry behavior, and vendor approval lead times. Check whether callbacks can be queued during the change.

Recommended next step

Register the destination in advance and test callback delivery before redirecting production traffic. Informatix Systems can assess cloud migration and integration dependencies.