Read-only

Preview Campaign Launch

Renders a read-only launch preview for a campaign before any message goes out. Returns up to 10 personalized first-touch messages (configurable up to 50), a summary of the prospect list, blacklist hits, and duplicate hits. Use it to sanity-check personalization and audience quality before confirming a launch.

preview_campaign_launchGET/api/v1/campaigns/{campaign_id}/launch-preview
crispy — bash

Example prompt: Show me a launch preview of my gtm-engineers-apr26 campaign with 15 sample messages

{
  "sample_messages": [
    {
      "contact": "Maya Lindqvist",
      "message": "Hi Maya, loved your recent post on GTM tooling. Would be great to connect."
    }
  ],
  "list_summary": { "total": 240, "eligible": 231 },
  "blacklist_hits": 2,
  "duplicate_hits": 7
}
Permission scope
read only, core
Access
Read-only
Category
Campaigns

What you can build

Catch broken personalization tokens before a single invite is sent
Confirm your prospect list is clean of blacklisted or duplicate contacts
Review sample first-touch copy with your team before going live
Validate audience size and message quality in one read-only call

Parameters

Inputs accepted by preview_campaign_launch.

NameTypeDescription
campaign_idstringThe campaign slug/id (e.g. 'gtm-engineers-apr26')
sample_sizeintegerNumber of preview messages to render (1-50, default 10).

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