What does CPM stand for in advertising?

In advertising, CPM stands for Cost per Mille, which translates to "cost per thousand impressions." This metric is crucial for advertisers as it measures the cost of displaying an advertisement one thousand times to potential viewers. It helps in evaluating the efficiency of advertising campaigns, allowing advertisers to understand how much they are spending for each group of 1,000 impressions.

Using CPM, advertisers can compare the effectiveness of various advertising platforms and ultimately decide where to allocate their budgets for maximum exposure. The use of "mille," derived from Latin, emphasizes the focus on reach and visibility rather than direct responses or clicks. This makes CPM a relevant metric, especially in brand awareness campaigns where the goal is to generate impressions rather than immediate conversions.

The other options—like Cost per message or Customer purchase method—do not accurately reflect the standard terminology used in advertising metrics, making them less applicable in this context.