91104: Event type not found

This error occurs when your Event Streams request references a type value that Twilio cannot match to an available Event Type resource. Event Streams subscriptions are built from Event Type and schema version pairs, and you can list valid event types or fetch a specific one through the Event Type resource.

• The type value in your request does not exactly match an Event Type resource returned by GET /v1/Types or GET /v1/Types/{Type}.
• The event type name is misspelled or uses the wrong namespace, so Twilio cannot identify it as a valid Event Streams event type.
• You are creating or updating a subscription, or adding a subscribed event, with an event type that is not available for use in Event Streams. Subscriptions and subscribed events both require valid event type values.
• You are trying to use an event type whose status no longer allows new subscriptions or additions, such as restricted or discontinued.

• List available event types with GET /v1/Types and copy the exact type value from the response before you create or update a subscription.
• Fetch the specific event type with GET /v1/Types/{Type} to confirm that the event type exists and that the identifier in your request is correct.
• If you are creating a subscription or adding a subscribed event, update the request so the type value matches a valid Event Streams event type.
• Verify the event type status before you add it to a subscription. If the event type is restricted or discontinued, replace it with a supported alternative.

• Event Type resource
• Subscription resource
• Event types lifecycle