Clickatell

Audience: Low-code Engineers

Skill Prerequisites: Actions, Tokens, Clickatell account

The Clickatell add-on sends text messages (SMS) through the Clickatell gateway. Use its action to send confirmations, codes or alerts to one or more mobile phone numbers from a form, workflow or API endpoint.

note

The add-on is installed separately as the DnnSharp.Clickatell package, and needs the CLICKATELL feature in your license. If it isn't licensed, the action fails with a "not licensed" error. If you don't see the Send SMS via Clickatell gateway action, the add-on isn't installed. You also need a Clickatell account with an SMS integration that uses the REST API.

Choosing an action

Action	What it does	Use it to
Send SMS via Clickatell gateway	Sends one message to one or more phone numbers through your Clickatell account, and can save Clickatell's JSON response in a token.	Send a booking confirmation, or the same reminder to a list of numbers.

Things to know

• No connector. You pass the Clickatell API key to the action itself. Keep it in a token, for example from a setting, instead of typing it into every action.
• Send only. The action can't receive SMS replies. To receive and reply to SMS, use the Twilio add-on.
• Accepted isn't delivered. A successful response means Clickatell accepted the message. One invalid number can be rejected while the others are sent, so check the response token. Read it with Parse JSON into Tokens.
• Avoid double quotes in the message. They aren't escaped and make the action fail.

For SMS through Twilio, see Twilio. For email, see Email. For all add-ons, see Add-ons.

Revised 10/02/2026