September 11th, 2026
New
API
Test the full subscription lifecycle in minutes, not days
Testing a subscription integration shouldn’t mean waiting days to see what happens next.
We improved Rebill’s sandbox so you can validate renewals, failed recurring payments, retries, and the final subscription outcome within a single testing session.
Move a subscription forward when you need to
You can trigger the next charge for a sandbox subscription whenever you’re ready using:
POST /v3/subscriptions/{id}/sandbox/advance
Use it as many times as needed to move through the complete lifecycle:
Initial payment → Renewal → Failed payment → Retries → Final outcome
Instead of waiting for each scheduled charge, you can move through the flow step by step and validate the full subscription lifecycle in minutes.
Test subscriptions with hourly plans
Plans created through the API can now use an hourly frequency in sandbox.
This makes it possible to test renewals automatically without waiting for the previous minimum daily cycle.
Hourly frequency is available only in sandbox.
Simulate failed renewals and retries
We’ve also added new test card scenarios for Argentina, Brazil, Mexico, Chile, Colombia, and the United States.
You can use:
A card that approves the initial payment and declines renewals.
A card that always declines due to insufficient funds.
Both scenarios automatically trigger the subscription retry flow, so you can validate how your integration responds to a failed recurring payment without manually changing the payment method.
Complete the retry cycle in hours, not days
Automatic sandbox retries now run after:
2 hours → 2 hours → 3 hours → 3 hours
This reduces the complete retry cycle from 10 days to 10 hours, with no additional configuration required.
And when you need to test even faster, you can use the sandbox endpoint to advance each attempt and move through the full cycle in minutes.
Together, these improvements let you validate subscription creation, renewals, a failed payment scenario, every retry, and the final outcome before going live, without depending on support to modify the test flow.
These tools are available for card subscriptions in sandbox. Cash and bank transfer subscriptions are not included because their recurring payments are handled manually.