Once an ad unit becomes "inactive" can it be made "active" again?

Talking about ad units, not channels.

[Perfection]

When using the ad management feature, an ad unit will become "inactive" if it gets no impressions for X amount of days (I think it's 7?).

If after this number of days I decide I want to use this ad unit again, will it just become "active" automatically if I placed this unit's code on my pages and had it start getting impressions again?

I ask because I did the above about 60 minutes ago, and the ad unit is still listed as "inactive" in my "Manage Ads" tab.

I know there is (coincidently) some updating delay going on today, but I'm not sure if that's playing a role here or if this isn't the way to make an inactive ad unit active again.

Any help would be appreciated.

[netmeg]

Yes, you can re-active ads, but it does take a few hours, even without whatever updation is going on today. I do it all the time.

[AussieWebmaster]

basically they want you to increase your bids

[AdSenseAdvisor]

AdSense units that were created or received no impressions within the last 7 days appear as inactive on your Manage Ads page. If an inactive ad unit starts to generate impressions, then it will appear as active.

I hope that helps you.