Payroll teams should drill an error found two days before pay day: the agent has prepared a run with overtime doubled for 80 employees because a timesheet import ran twice. In about 90 minutes, payroll administrators practise pausing the agent to draft-only, escalating to the payroll manager and finance, correcting the run, recording decisions and telling employees what to expect.
What does a payroll drill rehearse?
Payroll administrators collect hours, changes and deductions, prepare the run, check it and submit payments and tax returns. Agents typically import timesheets, apply pay rules, flag unusual changes and prepare the run at depth 2 for a person to check. Payment of salaries sits at depth 4 at most, and almost every organisation keeps final approval with a person. For what agents can and cannot do here, see whether an AI agent can run payroll.
Payroll errors hit people's lives directly: rent, mortgages and bills depend on pay day. Overpayments are almost as harmful as underpayments, because recovering them causes hardship and disputes.
The payroll manager owns the drill; a senior administrator facilitates. Administrators, someone from finance, an HR adviser and IT take part. For the format, see what an incident drill is.
The scenario
Wednesday, 10:00. Pay day is Friday. During pre-run checks, an administrator sees that total overtime is twice last month's. The timesheet system exported overtime for one site twice after a retry, and the agent imported both files. Eighty employees show double overtime, worth about 30,000 in total. The run has been prepared but not approved.
The drill step by step
- Person (facilitator): reads the scenario and starts the clock.
- Person (administrator): escalates to the payroll manager with the variance report.
- Person (payroll manager): pauses the agent to draft-only. No further imports or recalculations happen without a person. The verdicts name the organisation's own limits.
- Person (payroll manager): escalates to finance and IT. IT confirms the duplicate export.
- Person (administrator): identifies affected employees from the record and removes the duplicate import.
- Agent, depth 2: recalculates the run on the corrected import. Administrators check every affected employee's pay against the timesheet system.
- Person (payroll manager): approves the corrected run in time for Friday.
- Person (payroll manager and HR): decide on communication. If the error was caught before payment, a short note may not be needed; if any payslips were already visible to employees, explain.
- Person (payroll manager): records each decision; the facilitator runs the debrief. Also run the branch where the error is found after payment: who decides on recovery, and how is hardship handled?
| Step | The agent does | Depth | Stays with a person |
|---|---|---|---|
| Alert | Has prepared the run | 2 | Spotting the variance |
| Pause | Holds imports and recalculations | 2 | Tightening limits |
| Escalate | Nothing new | 2 | Finance, IT |
| Correct | Nothing | 2 | Removing the duplicate |
| Recalculate | Recalculates on corrected import | 2 | Checking every affected employee |
| Approve | Nothing | 2 | Approval of the run |
| Communicate | Drafts notes | 2 | HR and payroll decisions |
What makes this drill specific to payroll?
The deadline is fixed and personal. Pay day cannot move, and every hour spent finding the error is an hour less for checking the fix. The drill should time each step against the real payroll calendar.
It also shows why a variance check is a control, not a chore. The agent applied pay rules correctly to the data it imported. A bound that holds any run whose overtime or total pay moves beyond a set range from last month turns a doubled import into a held run.
The post-payment branch matters as much. If the error is found after pay day, recovering overpayments from 80 people needs HR, clear letters and a policy on repayment terms. Rehearse who decides.
Bring HR into the scenario early. HR knows which of the 80 employees are on leave, have just joined or are in a dispute about overtime, and those are the people most likely to be confused or upset by a correction. A short list from HR lets payroll handle them first.
Which controls does the drill test, and what evidence do they leave?
Variance checks. Evidence: the variance report and who reviewed it.
The pause. Evidence: the limit change in the record.
Correction. Evidence: the removed import, with name and time, and the recalculated run.
Approval. Evidence: the final run approved by a named person.
What should the payroll manager measure?
- Time from the variance alert to the pause.
- Time to approve a corrected run.
- Whether the run met the payment deadline.
- Whether a variance bound was added before the next run.
Where do payroll drills go wrong?
Fixing the totals by hand. Adjusting 80 lines manually is slower and riskier than removing the duplicate import and recalculating.
Skipping the post-payment branch. Errors are not always caught in time. The recovery process is where most harm happens.
IT not involved. The duplicate export will recur unless the timesheet system's retry behaviour is fixed.
Payroll sits next to HR and finance; compare the HR team drill and the lending team drill, which also deals with money promised to people. Build your scenario with the AI agent incident drill script template. The full method is in training teams for AI agents.
Where the Academy fits
Pryme Intelligence Academy's Operator track includes a module on reading the workspace and another on when something goes wrong. For payroll teams, the practicum of two weeks of real review decisions, with no missed red line and sign-off by a Pryme assessor, can run across a pay cycle so the assessment covers the busiest days.
Questions people ask
Should a payroll agent ever approve a run?
Almost every organisation keeps final approval with a person. The agent prepares and checks; a named administrator approves.
What if the error is found after pay day?
Decide quickly on recovery, involve HR, and give affected employees clear options. The drill should rehearse this branch.
How often should payroll drill?
Twice a year, and before any change to timesheet systems, pay rules or the agent's capabilities.