Meta WhatsApp returns error #131030 ("Recipient phone number not in
allowed list") in two situations:
1. Sandbox: the recipient isn't registered as a test number.
2. The registered number format differs from what we sent, usually
because of trunk-prefix 0 quirks (e.g. Lithuanian numbers stored
as +370063949836 vs international +37063949836).
Today that error bubbles up to the UI and the user has to manually
edit the contact. This PR makes the send pipeline self-heal: on 131030
it retries with alternate phone-number formats, and if an alternate
works it persists the corrected format back to the contact so future
sends are a single API call.
src/lib/whatsapp/phone-utils.ts
- Added phoneVariants(sanitized) — yields original, then variants with
a trunk 0 inserted/removed after each plausible country-code length
(1-3 digits). Deduplicated. Original is always first so the fast
path for correctly-formatted numbers is one attempt.
- Added isRecipientNotAllowedError(message) helper — matches
code 131030 or the English error text, so we only retry when the
failure is actually about the recipient (other errors fail fast).
src/app/api/whatsapp/send/route.ts
- Reply send now iterates phoneVariants() and stops at the first that
succeeds. If a non-original variant works, contacts.phone is updated
to the working format.
src/app/api/whatsapp/broadcast/route.ts
- Same retry applied per recipient in the broadcast loop.
- Also fixed a separate bug: broadcast was calling
sendTemplateMessage(accessToken, phone_number_id, ...) — wrong order.
Correct signature is (phoneNumberId, accessToken, to, templateName,
language?, params?). This was silently rejecting every broadcast.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
