Connect WhatsApp via Cloud API (Meta official)

WhatsApp Cloud API is Meta’s official API. More reliable than the gateway approach but stricter rules (24-hour customer service window, template approvals, per-message pricing).

Best for: Verified businesses, brands sending high-volume templates, customer support at scale.

Prerequisites

• A Meta Business Manager account
• A WhatsApp Business Account (WABA)
• A phone number registered with Cloud API
• A System User access token with whatsapp_business_messaging permission

See Meta’s Cloud API Get Started for the Meta-side setup.

1. Connect in WaSMS

1. Go to Dashboard → Channels.
2. Click + Add channel → WhatsApp Cloud API.
3. Paste your Phone Number ID and Access Token.
4. Click Connect.

2. Set the webhook in Meta

WaSMS shows you a webhook URL. In Meta Business Manager → WhatsApp → Configuration → Webhooks, paste it with the verify token. Subscribe to the messages field.

3. Send a test

Send a test message from Conversations to a number that previously messaged you (Cloud API cannot initiate cold — only respond or use templates).

Templates

To initiate outside the 24-hour window, you need approved templates. Submit them in Meta Business Manager.

Pricing

Cloud API has per-conversation pricing charged by Meta.