Hi Rosdyana,
Thanks for posting your concern.
Please find my answer for each your question below.
"the first one, is it possible that the number of clicks and impressions will changed after passed some days?"
-The possible reason for the data inconsistency that you are encountering is because some performance data are not available instantly, and some metrics are only updated once a day. There are also the possibility of adjustments being applied to your account after a certain period. You may refer to this
document to read more about data freshness and adjustments and what period it is best to retrieve performance data.
"if first question is possible, is there any notifications or status (from google ads API) I can use to know that the data is changed?"
-I am afraid that a notification feature for metrics adjustments is currently not possible via the AdWords API. You can continue to follow our
blog for any updates or announcements regarding this topic.
Let me know if you have further questions/clarifications.
Regards,
Ejay
Google Ads API Team

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