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All WhatsApp messaging is routed through Alcmeon, Simio’s WhatsApp Business API provider. Simio does not talk to Meta directly. Template approvals, media conversions, account health signals, and all inbound WhatsApp events (new messages, delivery/read status updates, button clicks) flow through Alcmeon.

What you get with WhatsApp in Simio

  • Campaigns: one-off template sends to segments.
  • Automations: event-triggered flows (opt-in confirmation, external API triggers, integrations).
  • Chatbots: automatic replies to inbound WhatsApp messages.
  • Conversations inbox: live threads with your customers, with a 24-hour reply window.
  • Templates: create and submit WhatsApp templates for Meta approval.
  • Account health: quality rating, sending tiers, and restriction alerts pulled from Meta via Alcmeon.

What is specific to WhatsApp

WhatsApp has these particular rules that shape how you use it:
  • Templates and Meta approval. Business-initiated messages must be pre-approved by Meta as templates. See WhatsApp templates.
  • 24-hour conversation window. Free-form replies are only allowed within 24 hours of the contact’s last inbound message. Outside that window, you must start a new conversation with a template. See Conversation billing.
  • Per-account opt-in. Consent is tracked per WhatsApp Business account, not per company. A contact who opted in on number A has not opted in on number B. See Opt-in rules.
  • Account quality and sending tiers. Meta rates each WhatsApp account (High/Medium/Low) and enforces daily conversation limits that grow as you prove sending quality. See Account quality.

How Simio talks to WhatsApp

1

Pairing through Alcmeon

You generate a one-time pairing code in Simio and hand it to Alcmeon out of band. Alcmeon confirms the pairing back. See Connect a WhatsApp number.
2

Inbound events via webhook

Every inbound WhatsApp event (new message, delivery/read status, button click) arrives at Simio as a webhook forwarded by Alcmeon, is queued, and is processed in the background.
3

Outbound via Alcmeon API

Simio sends outbound messages through Alcmeon’s WhatsApp Business API. Templates, media, and click-tracking redirects are all managed on Simio’s side and relayed through Alcmeon at send time.

Multiple WhatsApp accounts on one company

A company can connect more than one WhatsApp number. Simio figures out which account a conversation belongs to based on the most recent message sent through it, not a fixed assignment. This matters practically because:
  • Templates are picked per account: replying inside the inbox offers only templates approved for that specific account.
  • Consent (opt-in and opt-out) is tracked per messaging account, not per contact overall.

Where to go next

Connect a number

Pair a WhatsApp Business number with Simio.

Templates

Structure, approval, and sync of WhatsApp templates.

Opt-in rules

How Simio tracks WhatsApp consent and what Meta requires.

Conversation billing

How Meta bills WhatsApp conversations (marketing, utility, service).

Account quality

Quality ratings, sending tiers, and warm-up strategy.

FAQ

Common questions about WhatsApp in Simio.