Hi!
I found a possible misnaming in the "Creative Conversion Report" (= "Free clicks" in the UI). When the "ConversionTrackerId" column is included in the report it has the "Conversion Tracker Id" display name (in the first row of CSV report) instead of "Free click type" as described in the
docs.
Other columns with similar names look fine:
"CreativeConversionRate" -> "Free click rate"
"CreativeConversions" -> "Free clicks"
curl --http1.1 \
--header "Authorization : Bearer {AuthorizationToken}" \
--header "developerToken : {DeveloperToken}" \
--header "includeZeroImpressions: false" \
--header "clientCustomerId : {CustomerId}" \
--data "__rdquery=SELECT Date, ConversionTrackerId, CreativeConversionRate, CreativeConversions FROM CREATIVE_CONVERSION_REPORT DURING 20200602,20200602&__fmt=CSV"
https://adwords.google.com/api/adwords/reportdownload/v201809
results in:
"CREATIVE_CONVERSION_REPORT (Jun 2, 2020)"
Day,Conversion Tracker Id,Free click rate,Free clicks
Meanwhile it is
"Free click type" that is returned by ReportDefinitionServiceInterface.getReportFields as a display name of the "ConversionTrackerId" column.
Dmitry