Begin with simple, testable conditions like contains, equals, and starts with across description and amount. Apply auto-approve only when risk is near zero, and always leave a review trail. Tune gradually, watch outcomes, and celebrate fewer clicks without creating invisible mistakes.
Duplicates sneak in through overlapping histories, manual imports, and timing hiccups. Keep import windows clean, enable unique-id matching, and reconcile frequently so errors surface early. If a duplicate appears, void rather than delete, then document the cause to prevent recurrence.
Great systems preserve who created, reviewed, approved, and changed each line, with timestamps and reasons. This history calms auditors, strengthens investor confidence, and helps teammates learn. When questions arise, the record answers them without finger-pointing or memory tests during busy periods.