Revenue Ops

Payment Failure Notification and Task Creation

A failed payment from Stripe immediately notifies the team, creates a follow-up task, and starts a bounded dunning nudge to the customer so failed charges get worked instead of quietly lapsing.

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3 to 6 days
build time
4
outcomes
5
stack tools
6
build steps

Built with real HMX tool paths

SStripe Webhooks
nn8n
GGoHighLevel tasks
RResend
SSlack
SStripe Webhooks
nn8n
GGoHighLevel tasks
RResend
SSlack

Outcome signals

These are the real outcome statements attached to this HMX case study.

Instant
team alerted the moment a payment fails
Worked
every failure becomes an owned follow-up task
Self-closing
recovered payments stop the sequence automatically
Bounded
capped retries then human escalation, no spam loop

Case architecture

Payment Failure Notification and Architecture

6 nodes
Subscribe to payment_intent
Dedupe by Stripe event ID
Stripe Webhooks
n8n
Exception Path
Owner Alert
  1. 01Subscribe to payment_intent

    A failed payment from Stripe immediately notifies the team, creates a follow-up task, and starts a bounded dunning nudge to the customer so failed...

  2. 02Dedupe by Stripe event ID

    Dedupe by Stripe event ID before acting

  3. 03Stripe Webhooks

    Stripe Webhooks carries Payment Failure Notification and through validated triggers, branches, writebacks, and exception paths.

  4. 04n8n

    Create an owner follow-up task and post an internal alert with the failure reason

  5. 05Exception Path

    When automation confidence is low, route the record to a manual owner with the source, stage, and last action attached.

  6. 06Owner Alert

    Instant team alerted the moment a payment fails; Worked every failure becomes an owned follow-up task; Self-closing recovered payments stop the seq...

Problem

The operating gap

When a card fails or a subscription payment bounces, it often goes unnoticed until revenue is already lost. There's no automatic alert, no task to chase it, and no consistent customer nudge, so failed payments turn into silent churn.

Build

What gets built

A Stripe webhook on payment_intent.payment_failed and invoice.payment_failed is signature-verified and deduped by event ID, then creates a follow-up task on the right owner and posts an internal alert with the customer, amount, and failure reason. A bounded customer-facing sequence sends an update-card reminder with a capped number of retries that respects Stripe's own retry schedule; if payment recovers, the flow stops and closes the task automatically. Unrecoverable cases escalate to a human after the cap.

Build steps

Payment Failure Notification and Task Creation uses an event-driven automation layer for AI Automation. A failed payment from Stripe immediately notifies the team, creates a follow-up task, and starts a bounded dunning nudge to the customer so failed... The architecture connects subscribe to payment_intent, stripe webhooks, n8n, and owner alert with an explicit control path.

  1. 01Subscribe to payment_intent.payment_failed and invoice.payment_failed; verify signatures
  2. 02Dedupe by Stripe event ID before acting
  3. 03Create an owner follow-up task and post an internal alert with the failure reason
  4. 04Send the customer a capped update-card reminder sequence
  5. 05Stop and auto-close the task if payment recovers
  6. 06Escalate to a human after the retry cap for unrecoverable cases

Stack

Tools and layers

  • Stripe Webhooks
  • n8n
  • GoHighLevel tasks
  • Resend
  • Slack
  • Event layer: Subscribe to payment_intent.payment_failed and invoice.payment_failed; verify signatures
  • Validation layer: Dedupe by Stripe event ID before acting
  • Branching layer: Stripe Webhooks carries Payment Failure Notification and through validated triggers, branches, writebacks, and exception paths.
  • Writeback layer: n8n handles routine steps while a Stripe webhook on payment_intent.payment_failed and invoice.payment_failed is signature-verified and deduped by event ID, then creates a follow-u...
  • Exception layer: Instant team alerted the moment a payment fails; Worked every failure becomes an owned follow-up task; Self-closing recovered payments stop the seq...

Data flow

  1. 01Subscribe to payment_intent.payment_failed and invoice.payment_failed; verify signatures
  2. 02Dedupe by Stripe event ID before acting
  3. 03Create an owner follow-up task and post an internal alert with the failure reason
  4. 04Send the customer a capped update-card reminder sequence
  5. 05Stop and auto-close the task if payment recovers
  6. 06Escalate to a human after the retry cap for unrecoverable cases

Controls

  • When a card fails or a subscription payment bounces, it often goes unnoticed until revenue is already lost.
  • A Stripe webhook on payment_intent.payment_failed and invoice.payment_failed is signature-verified and deduped by event ID, then creates a follow-u...
  • When automation confidence is low, route the record to a manual owner with the source, stage, and last action attached.

Research basis