ImpressionReach/ UniqueCookies returning "--" for segment by day, all time data, shows correct value in the UI

Hi ,

We are using the adwords api version 509 to fetch the impressionReach / UniqueCookies to show the unique users who saw the campaign. The problem is that the adwords UI is giving us the exact values but the CSV report/ API is giving US "--" when we fetch the all Time report as well as segment by day data.

Can you guys tell whats happening here, is this a bug in the api ?

Another question is that for some data points it returns < 100 but in total it computes the correct total, so how should we compute the daily sum of < 100 data points on our end ?

Cheers

Suchit

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