1.) Goto the create GTT API report url section, prepare your required query; copy the URL into the clipboard

2.) open your Microsoft Power BI Desktop/Server and select "Get Data"

Select Web from Common data sources:

3.) paste the previously copied GTT API URL

• select Advanced and paste the URL
• preferable use &format=csv to fetch CSV formatted data to import into Power BI (JSON is the default format if parameter &format= is not set)
• add in HTTP request header parameters (optional) following name:
  Authorization.
  As value: Bearer NNNNNNNNNNNNNNNNNNNNNNNN (= <your non expiring token>)
  
  ► Please note you will have to request a GTT TOKEN from your Sales Rep which does not expire!

4.) execute the query and prepare the report within Microsoft Power BI to your liking