SMS Integration in ChatSyncs
How to connect an SMS gateway (Plivo, Twilio, Vonage, Clickatell) so ChatSyncs can send OTP, marketing, or transactional texts to customers outside WhatsApp.
In ChatSyncs, Chatbot Manager → [your bot] → Integrations → SMS connects an SMS gateway so your bot or automations can send plain text messages — useful for OTPs and any customer who isn't reachable on WhatsApp. It sits alongside HTTP API, Google Sheets, Autoresponder, and Email on the same Integrations tab.
Click the button to add a profile, then fill in the SMS API modal:

Supported providers#
- Plivo
- Twilio
- Nexmo/Vonage
- Clickatell
- AfricasTalking
- Esahal
- HTTP GET / HTTP POST — for any gateway that isn't natively listed but exposes a simple URL-based API
Required fields#
| Field | Example |
|---|---|
| Profile Name | Twilio OTP |
| Auth ID | Your provider's account/API ID |
| Auth Token | Your provider's secret token |
| Sender/From Number | +14155550100 |
Use cases#
- OTP messages — e.g. a login verification code, when the customer can't receive WhatsApp right now.
- Marketing SMS for customers who opted into SMS but not WhatsApp.
- Transactional SMS — order or appointment confirmations.
- Notifications — internal alerts sent as SMS to a staff phone.
Frequently asked#
How do I send an OTP over SMS instead of WhatsApp?
Connect an SMS gateway under SMS Integration (e.g. Twilio), then have your flow send the OTP through that profile instead of a WhatsApp template.
My SMS provider isn't in the list — can I still connect it?
If it exposes a simple HTTP GET or HTTP POST endpoint for sending messages, choose that provider type and supply the endpoint details instead of a named integration.
What credentials do I need from my SMS provider?
Typically an Auth ID, Auth Token, and the Sender/From Number the messages will appear to come from — check your provider's dashboard for these.
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