A transaction is the execution of a service(s) from a Martini endpoint. Services are used to integrate applications, create data flows between data repositories, implement the operations of an API, or a step in a business process. Services are invoked by Martini endpoints such as a scheduler, via http, or an event. Services can, and often do, include other services. A sequence of services that is triggered by a single Martini endpoint counts as one transaction.
Example: When a contact is updated in Salesforce it calls Martini via webhook URL. This triggers an integration on Martini that writes the data to Netsuite as well as a local SQL database. In this case the Martini endpoint is a URL invoked by HTTP. This triggers one or more services that transforms the data into the required format and then posts it to the remote API of Netsuite and writes it to a local SQL database. As these services were invoked by a single endpoint this counts as one transaction.
