> ## Documentation Index > Fetch the complete documentation index at: https://rain-sandbox-trial.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Event Catalog > Look up any Rain webhook event to see its category, whether it needs a response, and what triggers it. Use this catalog to identify each event's delivery behavior, response requirements, and where it applies. Events are grouped by category. **Synchronous** events expect a response that influences the outcome, such as approving an authorization. **Asynchronous** events are informational and only need a `2xx` acknowledgement. See [Respond to webhooks](/docs/webhook-delivery#respond-to-webhooks) for response requirements. Some events reach only the tenants a feature is enabled for, and one is legacy. Check the "When it fires" column to see if an event applies to your program. | Event | Category | Delivery | When it fires | | ---------------------------------------------------------------------------------- | ---------------------- | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [`transaction.requested`](/docs/transaction#transaction-requested) | Transactions | Synchronous | A cardholder attempts to authorize a purchase | | [`transaction.created`](/docs/transaction#transaction-created) | Transactions | Asynchronous | A spend, collateral, or payment transaction is created | | [`transaction.updated`](/docs/transaction#transaction-updated) | Transactions | Asynchronous | A transaction changes, such as an incremental authorization or refund | | [`transaction.completed`](/docs/transaction#transaction-completed) | Transactions | Asynchronous | A spend or payment transaction reaches a final, settled state | | [`transactionReward.created`](/changelog/webhooks/v1/transactionReward/created) | Transactions | Asynchronous | A card transaction settles and its reward is finalized. Sent only for partner-managed on-chain tenants | | [`transactionTransfer.created`](/docs/transaction#transactiontransfer-created) | Transactions | Asynchronous | A transfer between accounts is created | | [`transactionTransfer.updated`](/docs/transaction#transactiontransfer-updated) | Transactions | Asynchronous | A transfer changes state | | [`transactionTransfer.completed`](/docs/transaction#transactiontransfer-completed) | Transactions | Asynchronous | A transfer reaches a final state | | [`onchainRefund.created`](/docs/handling-refunds#webhook-notifications) | Transactions | Asynchronous | An on-chain refund is created and processing begins. Sent to tenants with on-chain refunds or Auth Pull enabled | | [`onchainRefund.completed`](/docs/handling-refunds#webhook-notifications) | Transactions | Asynchronous | An on-chain refund settles and the funds reach their destination. Sent to tenants with on-chain refunds or Auth Pull enabled | | [`card.created`](/docs/card#card-created) | Cards & Authentication | Asynchronous | A card is created, whether issued via the API or internally by Rain | | [`card.updated`](/docs/card#card-updated) | Cards & Authentication | Asynchronous | A card status changes or a card is added to a digital wallet | | [`card.notification`](/docs/card#card-notification) | Cards & Authentication | Asynchronous | A card provisioning or wallet token decision is made | | [`challenge.requested`](/docs/card#challenge-requested) | Cards & Authentication | Synchronous | A 3D Secure challenge is issued during authentication | | [`3ds.notification`](/changelog/webhooks/v1/3ds/notification) | Cards & Authentication | Synchronous | Legacy. A 3D Secure challenge is initiated, for tenants that have not migrated to `challenge.requested`. Same 60-second, single-attempt delivery as `challenge.requested` | | [`user.updated`](/docs/identity-and-compliance#user-updated) | Identity & Compliance | Asynchronous | A user's KYC or application status changes | | [`company.updated`](/docs/identity-and-compliance#company-updated) | Identity & Compliance | Asynchronous | A company's KYB or application status changes | | [`dispute.created`](/docs/disputes#dispute-created) | Disputes | Asynchronous | A new dispute is opened | | [`dispute.updated`](/docs/disputes#dispute-updated) | Disputes | Asynchronous | A dispute changes status or evidence is modified | | [`dispute.evidenceRequested`](/docs/disputes#dispute-evidencerequested) | Disputes | Asynchronous | Reserved; not currently emitted. Evidence requests reach you through your Rain contact | | [`dispute.chargebackCreated`](/docs/disputes#dispute-chargebackcreated) | Disputes | Asynchronous | A chargeback is created for a dispute | | [`contract.created`](/docs/account-and-reports#contract-created) | Account & Reports | Asynchronous | A collateral contract is created | | [`report.created`](/docs/account-and-reports#report-created) | Account & Reports | Asynchronous | A BIN report is ready | | [`paymentRoute.created`](/docs/paymentRoute#paymentroute-created) | Payment Routes | Asynchronous | A payment route becomes active and ready to receive deposits | | [`microDeposit.received`](/docs/paymentRoute#microdeposit-received) | Payment Routes | Asynchronous | A deposit under \$2.00 arrives on a payment route with a bank account, usually to verify account ownership. Rain records it but never processes it | | [`raindrop_balance.requested`](/docs/raindrops#raindrop_balance-requested) | Raindrops Rewards | Synchronous | Rain needs a user's current Raindrops balance | | [`raindrop_redemption.created`](/docs/raindrops#raindrop_redemption-created) | Raindrops Rewards | Asynchronous | A Rain-Managed redemption needs on-chain burn authorization | | [`raindrop_redemption.completed`](/docs/raindrops#raindrop_redemption-completed) | Raindrops Rewards | Asynchronous | A travel redemption is marked completed | | [`raindrop_redemption.refunded`](/docs/raindrops#raindrop_redemption-refunded) | Raindrops Rewards | Asynchronous | A travel redemption is refunded |