Add note about fetch.by. Closes #15

artemklevtsov · Jan 29, 2016 · 96e6f7e · 96e6f7e
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diff --git a/man-roxygen/get_report.R b/man-roxygen/get_report.R
@@ -4,6 +4,6 @@
 #' @param samplingLevel character. The desired sampling level. Allowed values: "DEFAULT", "FASTER", "HIGHER_PRECISION".
 #' @param start.index integer. An index of the first entity to retrieve. Use this parameter as a pagination mechanism along with the max-results parameter.
 #' @param max.results integer. The maximum number of entries to include in this feed.
-#' @param fetch.by character. Split the query by date range. Allowed values: "day", "week", "month", "quarter", "year".
-#' @param token \code{\link[httr]{Token2.0}} class object with a valid authorization data. 
+#' @param fetch.by character. Split the query by date range. Allowed values: "day", "week", "month", "quarter", "year". It does not work correctly with the \code{ga:users} and \code{ga:NdayUsers} metrics.
+#' @param token \code{\link[httr]{Token2.0}} class object with a valid authorization data.
 #' @family Reporting API
diff --git a/man/get_ga.Rd b/man/get_ga.Rd
diff --git a/man/get_mcf.Rd b/man/get_mcf.Rd
diff --git a/vignettes/reporting-api.Rmd b/vignettes/reporting-api.Rmd
@@ -81,6 +81,8 @@ get_ga(profileId = XXXXXXXX, start.date = date, end.date = date,
 
 `fetch.by` allowed in the `get_ga()` and `get_mcf()` functions. We recomend you move from large to smaller date ranges until a sampling data occurs.
 
+Note: `fetch.by` with the `ga:users` and `ga:NdayUsers` metrics is not correct because total users value for several days is not the sum of values for each single day. For details see the [documentation](https://support.google.com/analytics/answer/2992042).
+
 ## References
 
 - [Core Reporting API - Dimensions & Metrics Reference](https://developers.google.com/analytics/devguides/reporting/core/dimsmets)