# Retention rules

Reduce voluntary churn with targeted offers at cancellation.

Retention rules let you present a targeted offer when a customer attempts to cancel their subscription through the customer portal. You can target offers based on cancellation reason, subscription tenure, lifetime value, and other factors to retain customers before the cancellation completes.

### Request access to join the retention rules preview

Enter your email and we'll contact you.

```bash
curl https://docs.stripe.com/preview/register \
  -X POST \
  -H "Content-Type: application/json" \
  -H "Referer: https://docs.stripe.com/billing/retention/rules" \
  -d '{"email": "EMAIL", "preview": "billing_retention_rules_preview"}'
```