Pipeline coverage is the extent to which potential leads are distributed and represented across different stages of the sales pipeline as a result of cold email outreach efforts. Pipeline coverage measures how well the cold email campaigns are generating leads at various stages, from initial contact through to conversion. Effective pipeline coverage ensures that there are sufficient prospects at each stage of the pipeline, helping to maintain a steady flow of opportunities and avoid bottlenecks. It involves assessing the number and quality of leads at each stage, and using this information to optimize email strategies and improve overall campaign performance.