What are the most important recruitment marketing metrics?

The most useful recruitment marketing metrics measure alignment, not just attention. Impressions, clicks, and applies are useful, but they do not show whether the right people are entering the pipeline. Important metrics include qualified applicant volume, source quality, candidate drop-off points, time between steps, and eventual retention. The better question is not 'Did they apply?' but 'Did they understand, believe, stay engaged, and succeed?'