This might explain some of what you're seeing:
https://support.google.com/adwords/bin/answer.py?hl=en&answer=2544985
Oliver
On Sunday, October 28, 2012 6:37:57 AM UTC, Edward Bells wrote:
>
> Hello,
> We are using Google API for retrieving data (clicks, etc.) of search
> campaigns set in Googl
Hello,
We are using Google API for retrieving data (clicks, etc.) of search
campaigns set in Google.
There were cases that API call that was made at the end of given
month return amount of data and another call that was made few days later
for the same given month returned higher amount of data
