A merchant generates a customized service strategy related to a suite of electronic transaction services hosted by a service provider. The custom strategy specifies services to perform, and possibly an order in which to perform the services, by a service provider in relation to an electronic transaction associated with the merchant. Through use of a user interface, the strategy can be represented as a graphical decision tree, with terminal nodes representing services or actions. A customized strategy is transmitted to a service provider, as is transaction related information, whereby the service provider can service the transaction according to the strategy and based on the transaction information. Scheduling information that specifies different strategies to apply to different transaction scenarios can be generated. A strategy is selected by a service provider based on the scheduling information and transaction information, and is used to service one or more electronic transactions.