The moment an HR team signs a contract with a large payroll or HR vendor, they immediately lose visibility into what still needs to happen, who owns each piece, and whether they're on track. They're handed a kickoff call and then a rotating cast of specialists — one for payroll, one for benefits, one for time tracking — each carrying different assumptions about what the previous person already did. One reviewer described 'multiple implementation teams, each sharing different information' stretching the process months longer than planned. Another got no contact after their implementation manager was fired. Nobody from the HR team side has a single document that reflects real status.
The gap persists because the vendor has no structural incentive to make the chaos visible. Their goal is to get to 'go-live' and hand the account to a support team. Missed deadlines and confused clients create churn eventually, but it shows up quietly in renewal decisions, not in the implementation team's metrics. The buyer — usually a CFO or COO who signed the contract — rarely hears about the daily chaos; it lands on the HR director or HRIS manager who is living through it but doesn't have leverage to escalate effectively.
Existing project management tools don't help here because they require the HR team to build their own templates from scratch, without knowing what a correct ADP or Workday implementation actually looks like in sequence. The team ends up using spreadsheets that go stale, or relies on emails that are impossible to search across three different vendor contacts.
This is a recurring business because every HR software purchase triggers an implementation, and mid-market companies switch HR systems every five to eight years — often after the previous implementation was painful enough to justify the switch. The same pain recurs on the way out (data migration) and on the way in. An HR director who lived through a bad implementation will pay real money to avoid repeating it.
What to build
Build a checklist-and-milestone tracker pre-loaded with module-specific task sequences for the major HR platforms (payroll, benefits, time, onboarding), where HR teams log daily progress, flag conflicting instructions from vendor contacts, and produce a weekly status snapshot they can send to their CFO without manually writing a status update.
Where to start
Start with ADP Workforce Now implementations specifically, because the complaint volume is high, the module sprawl is documented, and HR consultants who manage these rollouts on behalf of clients will use and recommend a tool that makes their own work look more organized to their clients.
The hard part
Credibility of the pre-built checklists is the entire product — if the task sequences are wrong or incomplete for a specific module combination, the HR team will distrust the whole thing immediately, so you need to have done or closely observed several real implementations before your templates are worth paying for.
How it makes money
Flat monthly fee of $149–$299 per active implementation project, billed to the HR team or the HR consultant managing the project; drops to a lower annual maintenance fee after go-live for ongoing change management and add-on module rollouts.
See the evidence. The complaints behind this idea, the products they came from, and similar ideas in Core HR.
More ideas in Core HR