This page lists the field names available for Analytics Browser Sessions data, along with the Events Service internal name. When accessing the data using ADQL queries, you need to use the Events Service internal name. The Browser Sessions data can be viewed using the Analytics Query API. This page lists the fields that are specific to Browser Sessions.
Note: if your field name contains spaces or any reserved characters, the field name must be surrounded by backquotes. For example, if you define a custom field called "Item Purchased", the Events Service field name is userdata.`Item Purchased`.