How do you pause without losing what the account learned?

You pause the campaign that brings no contacts and you keep the history, the negatives and the structure. You do not delete the account or open another to “start clean” every bad month. Note which words and which radius did bring a call before you pause. That stays; the ad for the expired offer does not. The campaign is deleted on a Friday and recreated on Monday with other words. Two weeks of useful terms disappear. The campaign paused, with a note of why and of what is switched back on. The negatives stay on the account for when the spend returns.