Adwords Keywords Stats vs. totals
Re: Adwords Keywords Stats vs. totals
There can be 2 causes for this
1) You are looking at a display campaign and keywords were added after you received the 604 impressions without keyword targeting
2) You are looking any campaign and you have 604 impressions from deleted keywords, but they would appear on the bottom of the report.
I assume you are looking at the same time-frame when comparing these values 609 and 5 impressions.