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1BAS Automation Stack
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Marketing Intermediate 40 min setup

Trial user onboarding & milestone activation

Detect when SaaS trial users complete or miss core product activation milestones, delivering tailored guidance to convert them into paying accounts.

Required Tools: PostHog Make ActiveCampaign Slack
Trigger Phase

When this automation fires

Webhook / Event Definition

PostHog event: workspace_created or milestone_delayed_72h
Execution Logic

Step-by-step pipeline sequence

01

PostHog CDP fires webhook into Make when user creates their first project

02

Make checks if user invited a team member within 48 hours of signup

03

ActiveCampaign triggers automated drip email with a personalized Loom walkthrough video

04

Notify customer success rep in Slack when trial usage spikes above 80% quota

Resilience Architecture

Error handling & exception routing

• Webhook Failures: Ensure receiving endpoints respond with 200 OK before executing heavy downstream computations to avoid sender retry loops.

• Rate Limiting: Implement queue backpressure or sleep nodes (100ms delay) when updating CRM records in bulk via API.

• Dead Letter Alerts: Any catastrophic step failure must route the raw JSON payload to a private Slack triage channel so no lead or transaction is silently dropped.