Ursa Major Solar wants to know which of its marketing efforts are helping the team win Opportunities. What should an administrator configure to provide these insights?

Campaign Hierarchy groups campaigns in parent-child relationships for roll-up reporting on campaign metrics, but does not link campaigns to opportunity outcomes.

Campaign Influence associates multiple campaigns with a single opportunity by tracking campaign member activity on contacts related to that opportunity. It provides reports showing which campaigns contributed to revenue, allowing the team to measure marketing ROI against won opportunities. This is the direct tool for understanding which marketing efforts drive closed deals.

Map Custom Lead Fields configures how lead fields map to contact, account, and opportunity fields during lead conversion - it has no relationship to campaign attribution.

List Email Activities tracks individual email engagement such as opens and clicks within a campaign, but does not connect marketing efforts to opportunity wins.