The "customObject" parameter allows you to avoid the variables predefined by AT Internet ("name", "level2", etc.).
You can define the variables you want inside a JSON object and then map them to AT Internet variables via the Data Manager application (pages, chapters, custom site variables, as well as all other variables available for mapping). This step is mandatory for the information from the customObject to be included in the analyses.
You can find more details on the implementation of the customObject parameter in our technical documentation.