The specific moment: an HR manager is building next year's budget and realizes their company is paying for ADP modules — learning management, compliance training, advanced reporting, benefits administration tiers — that fewer than 20% of employees have touched. Complaints describe paying for add-ons to use ADP 'to its fullest capacity,' being unable to use it fully because of pricing, and one company discovering mid-year that four required compliance trainings weren't even in the module they were paying for. The cost of inaction in that last case was $20k externally sourced.
The reason no one has built this cleanly is that ADP itself has no incentive to show customers which modules they're underusing — that information would directly reduce renewal revenue. And internally at customer companies, the person who approved the contract (CFO or VP HR) is rarely the person who knows day-to-day which features employees are actually using. The gap between buyer and user is wide.
What's needed is a lightweight layer that connects to ADP via its existing API and API-accessible reporting endpoints, pulls actual usage data per module — logins, feature interactions, training completions, report runs — and presents it against what the company is paying per module per month. The output isn't a dashboard for its own sake; it's a pre-renewal briefing document: here's what you used, here's what you paid, here's what you can cut or renegotiate, and here's where you have compliance gaps that will cost you more externally if you don't address them now.
This recurs because contracts renew annually, headcount changes alter what modules are worth, and compliance requirements change what's legally necessary. A company that runs this analysis once before renewal will want it every year.
What to build
Build a read-only connector to ADP Workforce Now's API that pulls per-module usage telemetry, maps it against the customer's current contract line items (entered manually or parsed from upload), and generates a pre-renewal report showing cost-per-active-user by module and flags compliance training gaps against a maintained federal/state requirements database.
Where to start
Start with companies that recently received an ADP renewal quote and are actively trying to figure out what to cut — offer the first analysis free in exchange for sharing their contract structure, which seeds the benchmark database and creates a word-of-mouth referral at the moment of highest pain.
The hard part
ADP's API access is gated and the depth of usage telemetry available varies by product tier, meaning the data you can actually pull may not be granular enough to attribute cost to specific feature usage — forcing a partial reliance on self-reported usage surveys that undermine the product's core value proposition.
How it makes money
Annual subscription per ADP account ($1,200-3,600/year depending on headcount), positioned as a cost that pays for itself if it removes even one underused module at renewal.
See the evidence. The complaints behind this idea, the products they came from, and similar ideas in Core HR.
More ideas in Core HR