February 2026 Risk, Fraud, and Disputes Release Notes

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Dispute case transition webhooks

Marqeta has created webhook events for dispute case transitions, eliminating the need for continuous API polling and enabling real-time notifications for dispute case updates.You can now subscribe to casetransition.* events to receive instant notifications when dispute cases change status. The following event types are available under casetransition.* events:

Event type	Definition
`open`	Case created
`open_with_action_required`	Action required
`ready`	Ready for chargeback submission
`chargeback.initiated`	Chargeback submitted
`pending_close`	Temporary state before the case closes
`closed`	Case closed

​Dispute case transition webhooks

Dispute case transition webhooks