A TRTH report template defines the data you want to request, more precisely its type (End of Day, Intraday summary (bar), Time and Sales (i.e. Trade and Quotes), Market Depth, etc.) and the list of data fields.
The process to create a custom report template is:
Alternatively, it can be done via the API. See
The custom report template is saved on the server under your account, you can view all those you created in the GUI.
Relation between report templates and retrieval mechanisms
With the API, you can use 2 retrieval mechanisms: Scheduled or On Demand.