// Sequences & Automation

Sequence Webhooks

Send step-completion callbacks to external systems from your sequence workflow

1 min read
Updated March 18, 2026
sequenceswebhooksintegrationsautomation

You can add a webhook URL to any sequence step. When that step completes, demeterrr sends a POST request to your endpoint.

01

Why Use Step Webhooks

Common use cases:

  • Create CRM tasks after key touchpoints
  • Notify Slack/ops systems
  • Trigger downstream workflows in middleware tools
  • Persist sequence milestones to internal analytics
02

Webhook Payload Shape

Step callbacks include fields such as:

  • event (step.completed)
  • sequenceId
  • sequenceStepId
  • stepIndex
  • stepType
  • contactId
  • organizationId
  • sendingId
  • timestamp
03

Delivery Behavior

  • Webhook call uses POST with application/json
  • Timeout is short (10 seconds)
  • Failures are non-fatal (workflow continues)

This design prevents external outages from blocking core sequence delivery.

04

Implementation Best Practices

  • Make your endpoint idempotent (sendingId + stepIndex is a good dedupe key)
  • Return quickly (2xx) and process asynchronously
  • Capture payload logs for debugging
  • Add retry logic on your side if needed
05

Troubleshooting

If webhooks are not arriving:

  1. Confirm URL is valid HTTPS.
  2. Verify the step actually runs (not skipped/cancelled).
  3. Check endpoint latency and timeouts.
  4. Review external logs for rejected requests.

See Sequence Troubleshooting for full diagnostics.

// Related articles

Sequence Step Types

Understand each step type in the sequence builder and when to use it

2 min read

API-Triggered Sequences

Enroll contacts into sequences programmatically using the API

2 min read

Sequence Troubleshooting

Diagnose why sequences are not running or certain steps are skipped

2 min read

Creating Your First Sequence

Build and activate an automated multi-step sequence for survey and follow-up workflows

2 min read

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