Sometimes Google applies corrections for invalid traffic. This is especially the case if you advertise on the display network. Such corrections are typically applied after a few days.
See also the docs on data freshness <https://support.google.com/adwords/answer/2544985>, especially section "Adjustments". On Monday, January 29, 2018 at 10:41:45 AM UTC+1, [email protected] wrote: > > We run a site called magictbl.com, pulling data from google Adwords > report API. In December, we started including the result from Google > display network&Youtube advertisement. We derive yesterday’s impression > data in every morning time in Korean standard time. > However, last Friday, we discovered that ap performance report API returns > different data when we request this data after a week. For instance, for ad > A data January 19: impression was 254 in January 20, was 255 in January 26. > For ad B in January 20 in January 26. > impression was 2249 in January 20, was changed as 2250 in January 26. > We assume that adwords takes a couple of days to finish collecting data > from its engine. But, we need clear explanation. > Any idea or comment for this fact? Why the API returns different value > after one day and few days? Should we put off the request time after few > hours? > -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/0af544fd-d42f-4506-a09a-9f6c192b62bb%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
