A system and method for multichannel notifications that includes configuring an account for notifications within a multitenant platform for multi-channel notifications, which further includes receiving configuration for a set of participant binding resources, wherein the set of participant binding resources comprises endpoint addressing resources, where an endpoint addressing resource specifies a communication address and a communication channel identifier; receiving a notification request on behalf of an account, the notification request comprising at least one targeting property; and executing notifications in accordance to the notification request and the configuration of the participant binding resources of the account by selecting endpoint addressing resources that are accessed from the participant binding resources using the targeting properties of the notification request and transmitting notifications to communication addresses over a set of different communication channels as indicated by the selected endpoint addressing resources.