Abstract: Implementations for providing event processing services for a plurality of services are described. An example method may comprise receiving, by a payment processing service, data indicative of a payment event associated with an ordering service. The method may comprise causing, based on an accounting rule specific to a payment option associated with the payment event, a first entry associated with a handover account and the payment event to be added to a data store. The method may comprise sending, to the ordering service, handover information indicating the handover account and the payment event. The ordering service may cause, based on the handover information, a second entry associated with the handover account and the payment event to be added to the data store. The handover account may facilitate satisfying accounting rules for payment events without the ordering service having to manage satisfaction of the accounting rules.