"Social media doesn't work" is usually code for "we don't know how to measure social media." The ROI is real — you just need to measure it correctly. Here's how.
The Measurement Problem
Social media influences purchases without always getting credit in last-click attribution. Someone sees your Instagram post, visits your site a week later via Google search, and buys. Google gets the credit. Social gets nothing. This is why most businesses undervalue social — their measurement is broken.
A Better Framework
Track social media ROI across three tiers:
Direct ROI (easy to measure): Revenue from social ads, tracked via platform pixels and UTM parameters. Social ad clicks → conversions → revenue. This is straightforward.
Assisted ROI (requires setup): Use GA4's model comparison tool to see social's contribution across the full customer journey. Assisted conversions show you what social influenced, even if it wasn't the last click.
Brand ROI (harder, still valuable): Correlation between social activity and branded search volume, direct traffic, and overall conversion rate. When you increase social posting and engagement, does branded search go up? Track this monthly — the correlation is usually clear.
Metrics That Matter by Objective
Awareness: Reach, impressions, share of voice, branded search lift.
Engagement: Engagement rate (not total engagements — rate normalizes for follower count), saves, shares, comments.
Traffic: Click-through rate, landing page sessions, bounce rate from social traffic.
Revenue: Conversion rate from social traffic, assisted conversions, direct social ad revenue, customer acquisition cost from social channels.
Setting Up Tracking
Use UTM parameters on every social link — no exceptions. Tag your organic posts, ad campaigns, bio links, and stories. Create a consistent naming convention (source=instagram, medium=organic or paid, campaign=specific campaign name). This data feeds into GA4 and gives you accurate channel attribution.
Calculating Social Media ROI
Formula: (Revenue attributed to social - Cost of social) / Cost of social × 100. Include all costs: team salaries, tools, agency fees, ad spend, content production. Compare ROI by channel — Instagram, LinkedIn, and TikTok will likely have very different ROI profiles for your business.
Social media works. You just need to measure it properly. Need help building a measurement framework?