Report on a campaign-day level

Hi there,

I'm trying to query the API to get a table of metrics (spent, clicks, impressions) with one row per campaign per day (for all campaigns). How do I go about doing this?

I have tried Campaign Summary Report, but it seems I can't get a daily breakdown from this report. It rejects the request even if I filter by one or multiple campaigns (or none). I get a 400 Bad Request error.