Retain an approved audience count, named administrators, a record of delivery exceptions, one reconciled export, and a tested report-to-response handoff. Add the time your team spent configuring, reviewing, and supporting the pilot to your cost comparison.
Compare results within similar populations and scenario difficulty. A lower click rate in a heavily filtered office cannot by itself demonstrate better awareness than another office. Explain denominators, automated link inspection, excluded accounts, and changes in scenario design before presenting a trend to leadership.