How to Send a SMS

To send SMS messages using this API, follow the steps below:

Send text messages to multiple recipients using the LigueLead API's simple one-step process.

📋 Prerequisites

Valid api-token and app-id from your LigueLead account
Target phone numbers in Brazilian format (11 digits, no country code)
SMS message content (text)

📱 Send SMS Message

Send SMS messages to multiple recipients with a single API call.

1️⃣ Get Your Credentials

Access your account at areadocliente.liguelead.app.br
Navigate to the API Credentials section
Copy your API Key and API Secret (or the authentication token provided)

2️⃣ Prepare the Request

Endpoint:POST /v1/sms📄 Send SMS – API Reference

Request Example

curl -X POST "https://api.liguelead.com.br/v1/sms" \
  -H "api-token: YOUR_API_TOKEN" \
  -H "app-id: YOUR_APP_ID" \
  -H "Content-Type: application/json" \
  -d '{
    "title": "Welcome Campaign",
    "message": "Welcome to LigueLead! Thank you for joining us.",
    "phones": ["11999999999", "11888888888"],
    "group_id": "optional-group-id"
  }'

Response

{
  "message": "SMS accepted successfully",
  "data": {
    "campaign_id": "3b4f7c5e-7e2d-4157-b542-5eb2155455c5",
    "accepted_at": "2025-12-29T18:34:38.961Z"
  }
}

💡 Tip: Save the returned campaign_id for tracking delivery status later.

📋 Request Parameters

Parameter	Type	Required	Description
`title`	string	❌	Campaign identifier for organization
`message`	string	✅	SMS text content to be sent
`phones`	array	✅	Brazilian phone numbers (accept multiple formats)
`group_id`	string	❌	Optional group identifier for batch organization
`is_flash`	boolean	❌	Defines whether the message will be sent via Flash.

📱 Phone Number Format

The API accepts Brazilian phone numbers in multiple formats:

✅ National Format:

São Paulo: "11999999999"
Rio de Janeiro: "21999999999"
Brasília: "61999999999"
Belo Horizonte: "31999999999"

✅ International Format:

São Paulo: "+5511999999999"
Rio de Janeiro: "+5521999999999"
Brasília: "+5561999999999"

✅ DDI Format:

São Paulo: "5511999999999"
Rio de Janeiro: "5521999999999"
Brasília: "5561999999999"

Recommendation: While all formats are accepted, the national 11-digit format is recommended for best compatibility.

⚡ Processing & Delivery

Asynchronous Processing: SMS messages are queued for delivery
Response Code: 202 Accepted indicates successful queuing
Delivery Time: Usually within minutes, depending on carrier
Character Limit: Standard SMS length limits apply (160 characters per message)

🚀 Best Practices

Clear Messages: Keep SMS content concise and actionable
Organize with Groups: Use group_id to categorize related campaigns
Test First: Send to a small group before scaling up
Timing Matters: Consider Brazilian business hours for better engagement
Descriptive Titles: Use clear campaign titles for easy identification

🚫 SMS Flash Restrictions

SMS Flash messages do not allow sending links (URLs) in the message content.

🛠️ Troubleshooting

Issue	Solution
Invalid phone format	Ensure valid Brazilian phone number format (11 digits or with DDI)
Authentication error	Verify `api-token` and `app-id` headers
Message too long	Keep within SMS character limits
Empty phones array	Include at least one valid phone number

📈 SMS Campaign Ideas

E-commerce

Order confirmations
Shipping updates
Promotional offers
Abandoned cart reminders

Healthcare

Appointment reminders
Medication alerts
Health tips
Test results notifications

Education

Class schedules
Important announcements
Grade notifications
Event reminders

Retail

Store promotions
New product launches
Seasonal campaigns
Customer surveys

🔐 Security & Compliance

Data Protection: Ensure compliance with Brazilian data protection laws (LGPD)
Opt-in Required: Only send SMS to customers who have consented
Rate Limits: Respect API rate limits to avoid blocking
Content Guidelines: Avoid spam-like content that could be filtered

📞 Support

Need help with SMS integration? Contact our support team through the LigueLead Client Area.