I use the Google Analytics (GA) Reporting API to retrieve custom data from my GA views. Often my queries include a mixture of standard and custom dimensions regarding different URLs and their respective page views, e.g. something like ga:pagePath, ga:pageTitle, ga:dimensionX, where dimensionX is set on a hit level and send with every page view (like publishing date or some CMS identifier).
The returned data regularly includes rows that represent some kind of dimension combination with 0 page views. How can that be? Why would GA report a data point with 0 hits?
PS: I don't use 360, so sampling applies.
Looks like you have set includeEmptyRows: true in the request.
includeEmptyRows boolean
If set to false, the response does not include rows if all the retrieved metrics are equal to zero. The default is false which will exclude these rows.