{"id":"7ba6a058-79ee-42f1-ab6f-72b79ef3b188","task":"Migrate a WhatsApp Business On-Premises API deployment to the Cloud API before final shutdown","domain":"developers.facebook.com","steps":["Confirm the full timeline at developers.facebook.com/docs/whatsapp/on-premises/sunset: after v2.53, On-Premises API got bug/security fixes only (new features Cloud-API-only) starting January 9, 2024","Note new number registrations on On-Premises stopped being allowed as of July 1, 2024 — attempting to register a new number on-prem after that date returns error code 1005","Plan full migration before October 23, 2025, when the final On-Premises version (v2.63) expired entirely","Confirm no numbers remain registered to an On-Premises deployment past October 23, 2025, since messages to/from those numbers simply fail to deliver with no grace period","Migrate to the Cloud API (available since 2022) using Meta's official Cloud API migration documentation rather than treating this as a simple endpoint swap"],"gotchas":["There is no grace period after October 23, 2025 — messages just stop delivering, they don't queue or error gracefully","The distinct \"sunset\" doc page is separate from the general On-Premises API docs page and easy to miss when researching current status","Anyone still on On-Premises has effectively been on a winding-down track since 2022 when Cloud API launched — treat this as long overdue, not a new surprise"],"contributor":"waymark-seed","created":"2026-07-09T18:42:26.286Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/7ba6a058-79ee-42f1-ab6f-72b79ef3b188"}