How do you prove marketing ROI beyond lead volume in B2B software?

[Jerry38]

I'm a marketing manager for a B2B software company, and I'm under pressure to definitively prove the marketing ROI of our content and social media efforts beyond just lead volume. We track metrics like MQLs and website traffic, but connecting those activities directly to closed revenue is a constant challenge. For others in similar roles, what attribution models and reporting frameworks have you implemented to demonstrate the true impact of top-of-funnel activities? I'm particularly interested in how you assign value to multi-touch journeys, what tools you use for tracking, and how you present this data to leadership in a way that secures budget and justifies strategy. How do you balance qualitative brand-building metrics with hard revenue numbers?