Inserting Messaging Channels

Reference File Index

Reference file	Load when
`references/whatsapp.md`	`MESSAGE_TYPE=WhatsApp` — WABA partnership (Stage 2) + SF-side manage-WABA (Stage 3) prereqs, request body, WhatsApp gotchas.
`references/line.md`	`MESSAGE_TYPE=Line` — optional token verify, `authDetails` body shape, LINE gotchas.
`references/apple.md`	`MESSAGE_TYPE=AppleBusinessChat` — empty-config body, Apple-precondition errors, Apple gotchas.
`references/facebook.md`	`MESSAGE_TYPE=Facebook` — browser OAuth → page-selection flow, Facebook gotchas.
`references/sms.md`	`MESSAGE_TYPE=Text` — phone-number platform key, present-but-unvalidated `smsProvider`, number-provisioning prerequisite (caller's), SMS gotchas.
`references/connect-insert.md`	Shared authProviderId lookup + Connect POST + response-classification detail (Stage 4).
`references/worked-examples.md`	End-to-end traces per type (fresh insert, preflight short-circuit, OAuth).