The amount of data that the Google Analytics returns is massive, we can not provide a full data dictionary. For details on the data, see the Google Analytics API documents.
Note:
Google occasionally adds new dimensions. Your earliest data may predate some dimensions. For example, Google introduced the ga:dateHourMinute dimension in 2017. If your data goes back to 2012 and you select the "As much as possible" date range option, Panoply can only collect data for the ga:dateHourMinute dimension since the day Google added that dimension in 2017.
Metadata
Panoply also adds the following fields into your tables.
__senttime: Formatted as a datetime, such as 2020-04-26T01:26:14.695Z.__updatetime: Formatted as a datetime, such as 2020-04-26T01:26:14.695Z.__account: connected account name__property: selected GA property__view: Selected GA view__sampled: Will display true if the results are sampled and false if not__sampled_rate: Will display the sample rate based onsamplesReadCounts/samplingSpaceSizes