A missing hour
Trace approved minutes into earnings and training benefit contributions.
The synthetic systems lab
A change here.
A ripple there.
Follow one fictional employee change through time, payroll, the ledger and benefits. Preview the result, apply the change, then inspect the before-and-after record.
Learn the connections
Small inputs deserve a full review.
A missing hour can change more than a time total. An effective date can preserve an earlier rate while changing later earnings. A cost-center transfer can leave gross pay alone and move the ledger allocation. A bank change can leave the amount alone and stop a simulated instruction until its training verification is complete.
This lab makes those relationships visible. It is an original teaching model, with invented rules and a fictional employee. It connects to no employer, payroll provider or bank, and it is not a replica of a vendor’s product.
The complete practice cycle
From a time export to a reviewed payroll.
Correct fictional time records, export and import hours, set up earnings and deductions, review the register and mock-submit. Complete the guided run to unlock an independent lesson.
Open the full mock payroll run →The date changes the result
Compare a midweek rate change with one that starts after the workweek.
Same pay, different ledger
Move the cost center without inventing a change to gross pay.
A bank change is a workflow
Test an unverified fictional destination, then review a verified training change.
Your workbench
Preview. Apply. Test.
All four free profile roles can use this lab. Newsletter and promotional email are optional.
Checking your free profile for the interactive workbench. The introduction above remains public.
Create account / sign inSaved practice has not loaded.
Current saved source
One fictional record
Effective-dated changes are evaluated against each work date; the fictional destination is evaluated on January 15.
Current saved outputs
Synthetic / no payment sentWhat would change?
Preview only. These results have not been saved.
| Field | Before | After |
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Run the review
Checks evaluate this training model, not a real payroll.
See the exact teaching assumptions
Before / after
Your saved transaction record
The latest 20 saved changes are shown. Reset is itself recorded; it restores this scenario’s fictional starting values. Nothing changes in an employer system.
Take the review habit with you.
Identify the source, effective date and reviewer. Predict the downstream effect. Compare the result with the intended change. Keep a clear test record.
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