Stripe Checkout Expired Notification to Slack & Email
Use the Stripe integration by MagicBell to setup a workflow when checkout.session.expired triggers in Stripe.
Connect Stripe to MagicBell to receive events and trigger workflows. This guide uses the MagicBell CLI.
Add the Stripe integration
Save your Stripe webhook signing secret in MagicBell. See Stripe webhooks.
magicbell integration save_stripe \
--data '{"webhook_signing_secret":"whsec_xxx"}'Copy the ID from the response and use it to build your webhook URL:
https://api.magicbell.com/v2/integrations/stripe/webhooks/incoming/{id}Setup the webhook
- Setup a webhook in Stripe with the URL from the last step.
- Select the checkout.session.expired event.
- If you already have a webhook configured, make sure it includes this event.
Add a workflow
Create a workflow that triggers automatically when Stripe sends this event.
Workflow key
Use this key to trigger the workflow when Stripe sends a checkout.session.expired:
integration.stripe.checkout.session.expiredExample workflow
Notify customers when their checkout session expires, then alert the sales team after 1 hour for follow-up.
{
"key": "integration.stripe.checkout.session.expired",
"steps": [
{
"command": "broadcast",
"input": {
"action_url": "{{payload.data.object.cancel_url}}",
"content": "Your checkout session for ${{payload.data.object.amount_total}} has expired. Please try again if you'd like to complete your purchase.",
"recipients": [
{
"external_id": "{{payload.data.object.customer}}"
}
],
"title": "Your checkout session expired"
}
},
{
"command": "wait",
"input": {
"duration": 3600
}
},
{
"command": "broadcast",
"input": {
"content": "Customer abandoned checkout for ${{payload.data.object.amount_total}}. Session ID: {{payload.data.object.id}}",
"overrides": {
"providers": {
"slack": {}
}
},
"recipients": [
{
"external_id": "sales-team"
}
],
"title": "Abandoned checkout"
}
}
]
}Save with the CLI
Use the MagicBell CLI to save this workflow to your project. You can also use the Workflows API endpoint instead.
magicbell workflow save \
--data '{"key":"integration.stripe.checkout.session.expired","steps":[{"command":"broadcast","input":{"action_url":"{{payload.data.object.cancel_url}}","content":"Your checkout session for ${{payload.data.object.amount_total}} has expired. Please try again if you'd like to complete your purchase.","recipients":[{"external_id":"{{payload.data.object.customer}}"}],"title":"Your checkout session expired"}},{"command":"wait","input":{"duration":3600}},{"command":"broadcast","input":{"content":"Customer abandoned checkout for ${{payload.data.object.amount_total}}. Session ID: {{payload.data.object.id}}","overrides":{"providers":{"slack":{}}},"recipients":[{"external_id":"sales-team"}],"title":"Abandoned checkout"}}]}'Event payload
Sample payload for the checkout.session.expired event. Use liquid templates to access fields in your workflow.
{
"account": "",
"api_version": "2025-08-27.basil",
"context": "",
"created": 1764060900,
"data": {
"object": {
"adaptive_pricing": {
"enabled": true
},
"after_expiration": null,
"allow_promotion_codes": null,
"amount_subtotal": 3000,
"amount_total": 3000,
"automatic_tax": {
"enabled": false,
"liability": null,
"provider": null,
"status": null
},
"billing_address_collection": null,
"branding_settings": {
"background_color": "#230f65",
"border_style": "rounded",
"button_color": "#ffdb00",
"display_name": "Development",
"font_family": "default",
"icon": {
"file": "file_1S546QIvz5j75CdbhyW2uqVd",
"type": "file"
},
"logo": {
"file": "file_1S546QIvz5j75CdbFySManCB",
"type": "file"
}
},
"cancel_url": "https://httpbin.org/post",
"client_reference_id": null,
"client_secret": null,
"collected_information": null,
"consent": null,
"consent_collection": null,
"created": 1764060900,
"currency": "usd",
"currency_conversion": null,
"custom_fields": [],
"custom_text": {
"after_submit": null,
"shipping_address": null,
"submit": null,
"terms_of_service_acceptance": null
},
"customer": null,
"customer_creation": "if_required",
"customer_details": null,
"customer_email": null,
"discounts": [],
"expires_at": 1764147299,
"id": "cs_test_a12NLNRTDZfLWpqJK716dbCpf1VlrrdwgWswtgrbaVKecbAFs0NEFCT5i4",
"invoice": null,
"invoice_creation": {
"enabled": false,
"invoice_data": {
"account_tax_ids": null,
"custom_fields": null,
"description": null,
"footer": null,
"issuer": null,
"metadata": {},
"rendering_options": null
}
},
"livemode": false,
"locale": null,
"metadata": {},
"mode": "payment",
"object": "checkout.session",
"origin_context": null,
"payment_intent": null,
"payment_link": null,
"payment_method_collection": "if_required",
"payment_method_configuration_details": {
"id": "pmc_1S546XIvz5j75CdbcYv3orKl",
"parent": null
},
"payment_method_options": {
"card": {
"request_three_d_secure": "automatic"
}
},
"payment_method_types": [
"card"
],
"payment_status": "unpaid",
"permissions": null,
"phone_number_collection": {
"enabled": false
},
"recovered_from": null,
"saved_payment_method_options": null,
"setup_intent": null,
"shipping_address_collection": null,
"shipping_cost": null,
"shipping_options": [],
"status": "expired",
"submit_type": null,
"subscription": null,
"success_url": "https://httpbin.org/post",
"total_details": {
"amount_discount": 0,
"amount_shipping": 0,
"amount_tax": 0
},
"ui_mode": "hosted",
"url": null,
"wallet_options": null
},
"previous_attributes": null
},
"id": "evt_1SXI1YIvz5j75CdbonrX4yFl",
"livemode": false,
"object": "event",
"pending_webhooks": 3,
"request": {
"id": "req_pZHnJjTZvWuOZP",
"idempotency_key": "09c1a782-437c-4b10-b83b-ac2c11bf1f11"
},
"type": "checkout.session.expired"
}