Banners

The Sandbox Portal can display two types of messages related to service availability:

Automatic Service Unavailable banner

When the Sandbox Portal loads, it performs a health check against its backend. If the health check fails, the Portal displays a full-page Service Unavailable message instead of loading partially available or potentially inconsistent content.

Service Unavailable banner in the Sandbox Portal

This message is generated automatically and is not published by an administrator. It indicates that the Sandbox backend is currently unreachable and does not correspond to a specific maintenance activity or outage notification.

When this message appears:

Note: The Service Unavailable message does not distinguish between a Sandbox backend outage and a network connectivity issue on your side. Both conditions result in the same message being displayed.

For information about the health check used to determine Portal availability, see Health check API.

Sandbox maintenance and outage banner

The Sandbox Portal includes a banner that communicates planned maintenance windows, known issues, and service disruptions. Unlike the automatic Service Unavailable message, which appears only when the Sandbox Portal backend is unavailable, this banner can be used to communicate partial outages or planned maintenance while the Portal remains accessible.

For example, an administrator might use the banner to notify users that a specific workflow is unavailable or that maintenance is scheduled during a particular time window.

What you see

The banner appears at the top of the Sandbox Portal on every page. It includes a severity indicator and a message describing the issue or maintenance activity.

Examples:

alt text

alt text

The banner uses one of the following severity levels:

Severity
Meaning
Info
General information or advance notice. No functionality is impacted.
Warning
A minor issue affects a limited feature or workflow. Core Portal functionality remains available.
Critical
A significant issue affects one or more key workflows. Users should expect service disruption until the issue is resolved.

The banner:

Important limitations

Keep the following limitations in mind: