Documentation Index
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Sentinel is Hyperline’s built-in monitoring system. It continuously watches your billing operations and surfaces actionable alerts — called tasks — whenever something needs your attention, from failed payments to disconnected integrations.
The Sentinel panel is available only to users with the View tasks role. Within the panel, each user only sees the tasks and entities they have permission to access, based on their role.
How it works
Sentinel runs in the background and creates a task whenever it detects an issue in one of the monitored areas (payments, invoicing, subscriptions, quotes, or integrations). Tasks are deduplicated so you see a single rolled-up alert per issue category, with a count of affected entities.
Each task includes a short description, the number of affected entities (invoices, customers, subscriptions, etc.), and a link to the relevant list page so you can drill down and resolve the issue.
You can filter the list using the All, Critical, High, and Moderate tabs to focus on the most pressing issues first.
Refreshing tasks
When you take an action that resolves part of a task, the task count and list of affected entities refresh automatically a few seconds later. If the count still looks out of date, you can trigger a manual refresh directly on the task.
Monitored alerts
Sentinel monitors the following alerts, grouped by category:
Payments
| Alert | Description |
|---|
| Invoice in error | A payment attempt on an invoice has failed. |
| Customer with expired payment method | The saved payment method has expired. |
| Customer with payment method expiring soon | The saved payment method is about to expire. |
| Payment method from a different invoicing entity | The customer’s payment method belongs to a different invoicing entity than the one issuing the invoice. |
| Payment provider disconnected | A payment provider connection is no longer authorized. |
| Bank account failed to sync | Hyperline could not refresh transactions from a connected bank account. |
Invoicing
| Alert | Description |
|---|
| Invoice is late | An invoice has passed its due date without being paid. |
| Invoice draft | A draft invoice is waiting to be finalized. |
| Electronic invoice failed to sync | An electronic invoice could not be delivered to the tax authority. |
| Customer has invalid tax ID | The tax ID on the customer record failed validation. |
Quotes
| Alert | Description |
|---|
| Quote activation failed | A quote was accepted but could not be turned into a subscription. |
Subscriptions
| Alert | Description |
|---|
| Subscription is errored | The subscription is in an error state and is not billing as expected. |
| Subscription renewal failed | Automatic renewal of a subscription did not complete. |
Integrations
| Alert | Description |
|---|
| Integration disconnected | A third-party integration lost its authorization. |
| Integration setup error | A newly added integration could not finish setup. |
| Integration needs reconfiguration | An existing integration requires updated credentials or settings. |
| Issue with integration | The integration sync produced an error. |
| Data loader failed to sync | A usage data loader could not refresh data. |
Settings
Open the Sentinel settings to control which alerts are surfaced. Each alert can be individually enabled or disabled, which is useful for issues that don’t apply to your setup — for example, hiding electronic invoice alerts if you don’t issue them. Disabled alerts won’t be created or shown in your task list.
