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How to set up Smartlead.ai

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Authentication

Smartlead uses API key authentication:
  1. Log in to your Smartlead.ai account
  2. Navigate to Settings → API
  3. Generate or copy your API key
  4. Paste the API key in Cargo when connecting

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Smartlead actions

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Add lead

Add a new lead to a Smartlead campaign. Required fields:
  • Campaign ID: The ID of the campaign to add the lead to
  • Email: Lead’s email address
Optional fields:
  • Mappings: Map standard lead fields:
    • First name
    • Last name
    • Phone number
    • Company name
    • Website
    • Location
    • LinkedIn profile
    • Company URL
  • Custom mappings: Map custom fields for personalization
Use cases:
  • Automatically enroll qualified leads into cold email campaigns
  • Sync leads from your CRM to Smartlead campaigns
  • Add leads based on scoring or segmentation criteria

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Pause lead

Temporarily pause a lead in a campaign. Required fields:
  • Campaign ID: The campaign the lead is in
  • Lead ID: The Smartlead lead ID
Use case: Pause outreach when a lead shows engagement or requests to be contacted later.

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Resume lead

Resume a paused lead in a campaign. Required fields:
  • Campaign ID: The campaign the lead is in
  • Lead ID: The Smartlead lead ID
Use case: Resume outreach after a specified time or based on a trigger.

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Remove lead

Remove a lead from a campaign entirely. Required fields:
  • Campaign ID: The campaign the lead is in
  • Lead ID: The Smartlead lead ID
Use case: Remove leads who have converted, unsubscribed, or no longer match your criteria.

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Field mappings

When adding leads, you can map these standard fields:

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Rate limits

Smartlead API has a rate limit of 60 requests per minute. Cargo automatically handles rate limiting to ensure reliable delivery.