This blog will explain Aggregator in SAP CPI ( Cloud Platform Integration) and how it can be used in iflows.
An Aggregator is a process step used for collecting messages until a condition is met.
It can collect messages across many executions of an integration flow, not only one. If the integration flow receives 5 messages, all the messages are collected by the same instance of the Aggregator.
The Aggregator collects the messages in a data store and you can only aggregate XML messages.