Monnify Webhooks
Asynchronous server-to-server notifications for nine event categories — successful collection, successful / failed / reversed disbursement, successful / failed refund, settlement completion, mandate status change, wallet activity, and low_balance_alert (added September 2025). Every payload includes a monnify-signature header computed as HMAC-SHA-512 of the stringified request body using the client secret. Standard envelope { eventType, eventData }.