Multiple Callback Subscriptions

We’ve released an update that allows consumers to subscribe to callback events using multiple callback URLs.

(1) Add Multiple Callback Subscriptions

New Endpoint: POST /subscriptions/bulk-upsert

Remarks:

This creates multiple callback subscriptions in a single request;
The response includes both newly created subscriptions, and existing subscriptions that already match the same eventType + callbackUrl.
Multiple subscriptions per eventType are supported as long as callbackUrls differ.
If a subscription with the same eventType + callbackUrl already exists, it is not modified but is still returned in the response.
Only subscriptions included in the request are affected; all other existing subscriptions remain unchanged.
A maximum of 42 subscriptions per eventType is allowed.

(2) Delete Callback Subscription:

New Endpoint: DELETE /subscriptions/id

Remarks: