Send an SMS

Short, time-critical messages through the business's own Termii account.

What it does

Sends a short text through the business's own Termii account. Reach for it when the message is time-critical and short — a code, a delivery alert, a reminder that has to be read within the hour. In Nigeria, SMS still lands where email does not.

What you need

API key from Termii (SMS). termii.com → Settings → API key. Nigerian SMS, so the sender ID below has to be registered with Termii before it will send — that takes a few days, and it is worth starting early.

It also needs Sender ID — The name on the message. Must be registered with Termii first, or sending is refused. Both halves are entered together.

Connecting it

Credentials belong to one project, not to your workspace and not to you. A system built for one client never runs on another client's account, and a package handed to a business runs on theirs.

Open the project and stay on the Visual Editor tab.
Open the Tools & Integrations rail on the right.
Find this tool, open it, and paste the credential.

To change it later, open the same panel — you can leave the key blank to keep the stored one and change only the other field.

Using it in a step

An Action step runs one tool with the arguments you type, exactly as written, with no model involved — so it costs nothing per run and behaves the same every time. Add one from the canvas toolbar, choose Send an SMS, and fill in:

Field	Required	What goes in it
`to`	yes	A phone number in international format — `+2348012345678`.
`message`	yes	One or two sentences. Every 160 characters is another message billed.

Values can carry results forward: {{previous}} is the step before, and {{row:column}} is a column from the row this run is about when the trigger fans out.

Press Try it to run the step on its own before committing to a whole sequence.

This one really sends. Trying it delivers a real message — use your own address or number, never a customer's.

Using it with an agent

Tick Send an SMS on any agent that should be able to call it, and the agent decides when to. Use an agent when the judgement matters and an Action step when the certainty does.

A worked example

A clinic texts patients the morning of an appointment. The message is one sentence with the time and the address, and the run only fires for appointments in the next 24 hours.

When it goes wrong

The sender ID is refused. Termii requires a registered sender ID before it will send, and registration takes a few days. Start it before you promise a client dates.

Nothing sends at all. Check the API key under Tools on this project — credentials are per project, so a key connected on another one does not carry over.