On every poll cycle, the Activity Feed node provides an output of newly compiled data that are logged in Activities within the defined period. This means that on each poll cycle multiple entries may be received.
The Activity Feed node, by default, packs all those new log entries in one simple message, in an array of objects. Working with an array of data is possible, nevertheless most readily available nodes are designed to work with individual messages. Therefore, a comprehensive flow to deal with one message at a time can be created as opposed to processing an array of objects.
Use the split node to break down an array of objects into an output stream of individual messages.