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WEBHOOK

Authorizations

X-Webhook-Signature
string
header
required

HMAC-SHA256 signature supplied on every webhook delivery. The signature is computed from the raw request body using the webhook secret supplied during creation of the webhook subscription.

Webhook receivers can cryptographically verify this header before processing the event to ensure the authenticity of the webhook delivery.

Refer to the verify signatures documentation to learn details about the full payload and the exact verification algorithm.

X-Hook0-Signature is deprecated and will eventually be removed. Use X-Webhook-Signature going forward. Both headers are sent with identical values and use the same verification algorithm and webhook secret.

This scheme applies to webhook delivery (outbound POSTs from CDP to your endpoint), not to inbound CDP API requests.

Headers

X-Webhook-Signature
string
required

HMAC-SHA256 signature supplied on every webhook delivery. The signature is computed from the raw request body using the webhook secret supplied during creation of the webhook subscription.

Webhook receivers can cryptographically verify this header before processing the event to ensure the authenticity of the webhook delivery.

Refer to the verify signatures documentation to learn details about the full payload and the exact verification algorithm.

X-Hook0-Signature is deprecated and will eventually be removed. Use X-Webhook-Signature going forward. Both headers are sent with identical values and use the same verification algorithm and webhook secret.

This scheme applies to webhook delivery (outbound POSTs from CDP to your endpoint), not to inbound CDP API requests.

X-Hook0-Signature
string
required

HMAC-SHA256 signature supplied on every webhook delivery. The signature is computed from the raw request body using the webhook secret supplied during creation of the webhook subscription.

Webhook receivers can cryptographically verify this header before processing the event to ensure the authenticity of the webhook delivery.

Refer to the verify signatures documentation to learn details about the full payload and the exact verification algorithm.

X-Hook0-Signature is deprecated and will eventually be removed. Use X-Webhook-Signature going forward. Both headers are sent with identical values and use the same verification algorithm and webhook secret.

This scheme applies to webhook delivery (outbound POSTs from CDP to your endpoint), not to inbound CDP API requests.

Body

application/json

The health.maintenance.scheduled webhook event payload.

Common fields included in every maintenance event payload.

eventId
string<uuid>
required

Unique identifier for this logical webhook event. Webhooks are delivered at least once, so your endpoint may receive duplicate deliveries for the same event. Use this eventId as the idempotency/deduplication key.

Example:

"9d3f2b1a-6e4c-4a8b-9f1d-2c7a5e8b4f60"

timestamp
string<date-time>
required

The UTC ISO 8601 timestamp at which this event's transition occurred, not the time at which this webhook was delivered.

Example:

"2026-04-21T14:32:00.000Z"

eventType
enum<string>
required

The type of webhook event.

Available options:
health.maintenance.scheduled
Example:

"health.maintenance.scheduled"

data
object
required

Announces a future maintenance window. Does not change the affected service's or operation's current recorded status.

Example:

Response

Webhook received and processed successfully.