Thanks a lot, Peter. I was unaware of this change.
On Thursday, April 20, 2017 at 9:45:46 PM UTC-7, Peter Oliquino wrote:
Hi Hans,
There has been a
recent change in the AdWords API wherein GCLIDs are now generated at impression time. For an impression made within the day, rows will appear to have duplicate GCLIDs because clicks made (with different click types) to your ads will have only a single GCLID as reference as a result of the impression generated on that same day.
Also, you may follow our
blog for any future changes and announcements in the AdWords API.
Thanks and regards,
Peter
AdWords API Team