> For the complete documentation index, see [llms.txt](https://docs.limephone.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.limephone.io/calls-and-messages/sms-campaigns-bulk-sms.md).

# SMS campaigns (bulk SMS)

Send one message to many contacts at once — as a one-time blast or a drip sequence — and track the results.

## Before you send: two prerequisites

1. **Register for US texting (10DLC).** US carriers require 10DLC registration before business SMS is delivered reliably — unregistered US traffic is filtered. Register your brand and campaign in **Settings → Trust center**. Some other countries have their own regulatory requirements; the Trust center's Brands, Campaigns, Addresses and Bundles tabs cover them.
2. **Have enough credits.** Campaign messages are paid from your message credits. Check and top up your balance in **Settings → Billing**. Only workspace admins can add credits.

## Creating a campaign

Campaigns live at [dashboard.limephone.io/campaigns](https://dashboard.limephone.io/campaigns) — there's no sidebar entry yet, so open that URL directly. Everything happens on a single form:

1. **Choose the campaign type** — a **One-time blast** or a **Drip sequence**.
2. **Choose the audience** — **All contacts**, **By status** (new, contacted, qualified, customer, or lost), or a **Contact list** you've saved. See Lists, tags & custom fields for building lists.
3. **Pick the Send from number.**
4. **Write the message.** The composer shows a live character and segment count and the estimated cost. You can personalize with the `{{first_name}}` and `{{company}}` tokens.
5. **Send.** Blasts go out immediately — the button reads **Send to N now**, where N is the number of reachable recipients.

## Built-in guardrails

* A **STOP opt-out line** is appended to your message automatically.
* **Unsubscribed contacts are skipped.**
* **Invalid numbers are excluded** — the form shows how many recipients are actually reachable before you send.

## Tracking the results

The campaigns page lists past campaigns with:

| Column   | What it shows                        |
| -------- | ------------------------------------ |
| Campaign | The campaign name                    |
| Type     | One-time blast or drip sequence      |
| Sent     | Messages sent                        |
| Failed   | Messages that could not be delivered |
| Status   | The campaign's current state         |

High failure rates on US traffic usually mean 10DLC registration is missing or incomplete — check **Settings → Trust center**.

## Need help?

Ask **Ask LimeAI** inside the dashboard, or email <support@limephone.io>.