Attendance Exception Tracker: Handle Every Late, No-Show & Missed Punch the Same Way
Compare scheduled shifts against actual punches, auto-flag late arrivals, early-outs, no-shows, missed punches, and unscheduled shifts, and route each one to a manager to code and resolve — with the manager approving before anything hits the employee's attendance record.
A web tool where you import the schedule and the actual punches, AI compares them and flags every exception (late, early-out, no-show, missed punch, unscheduled), a manager reviews each flag, assigns a reason code and excused/unexcused status (with points if you use a point system), and only approved resolutions are recorded against the employee — surfacing repeat patterns and exporting a clean exceptions and attendance-record CSV.
Before you start
- A Supabase account (free)
- A Vercel account (free)
- A Resend account (free)
- A schedule CSV (who was supposed to work, when)
- An actuals CSV or punch export (when they actually clocked in/out)
- Your attendance policy and reason/point codes
- Claude Code or any AI coding agent
The problem this kills
Attendance is one of those things every manager handles a little differently, and that inconsistency is exactly what gets companies into trouble. One supervisor writes up a late arrival; another lets it slide. A no-show gets a point on Tuesday but the same no-show in a different department gets a verbal warning. Missed punches get fixed quietly with no record of who changed what. Three months later nobody can say who was actually late how many times, the point totals don't add up, and when a termination decision comes around the paper trail is full of holes.
The data to do this right already exists — you have the schedule, you have the punches — but comparing them by hand across dozens of employees every week is miserable, so it doesn't happen. The result is a policy on paper that nobody applies the same way twice. You don't need a six-figure workforce-management suite to fix this, and you don't need to be a developer.
What you'll build
A simple internal web tool. You import two things: the schedule (who was supposed to work which shift) and the actuals (when people actually clocked in and out — a punch export or a manual log). The tool lines them up shift by shift and flags every exception: arrived late, left early, never showed, missed a punch, or worked a shift that wasn't scheduled. Each flagged exception lands in a manager's review queue. The manager opens it, sees the scheduled-versus-actual times side by side, picks a reason code (sick, traffic, approved swap, FMLA, unexcused, etc.), marks it excused or unexcused, assesses points if you run a point-based policy, and clicks Approve. Only then is it recorded against that employee's attendance record. The tool also watches points and patterns — so when someone crosses a warning threshold or racks up repeat Monday no-shows, it surfaces it instead of letting it hide in a spreadsheet.
What's inside the Implementation Plan
The downloadable plan is a step-by-step file you paste into an AI coding agent. It opens by interviewing you about your business — how you schedule, where your punches come from, exactly what your schedule and punch columns are named, your grace-period and rounding rules, whether you run a point system and what the thresholds are, your reason codes, and your messy edge cases (overnight shifts, shift swaps, partial days) — and then it tailors the data model, the exception rules, and every later step to your answers. This is not a generic template; the agent reflects a short spec back to you and waits for your thumbs-up before it builds anything. From there it walks the agent through the import, the schedule-versus-actuals comparison, the exception detection and categorization, the manager review-and-approve queue, the point and pattern tracking, and the CSV exports — each step with a ready-to-copy prompt. There's also a fallback so you can build and use the whole thing today with nothing but CSV files, even if your time clock has no API.
The governance it includes (this is the point)
Attendance records can affect someone's job, so this ships with the controls an HR team needs: login so only your team can use it, row-level security so a manager only ever sees their own organization's (and their own team's) employees, a complete audit trail of who coded and approved which exception and when, a hard human-approval gate so nothing is written to an employee's attendance record until a manager reviews and signs off, and duplicate guards keyed on employee ID + shift date so the same shift can't be processed or pointed twice. The plan is clear that this is a tracking and consistency tool, not legal advice — it helps you apply your policy evenly, with a defensible record.
Who it's for
Front-line managers, shift supervisors, and HR coordinators who track attendance informally today — in their heads, in email, or in a spreadsheet that nobody trusts — and want every late arrival, early-out, and no-show handled the same way, every time, with a record to back it up. If you can describe how your attendance policy is supposed to work, you can build this.
You've got this — start with the plan, paste the first prompt, answer the interview, and you'll see your first week of exceptions lined up for review the same afternoon.