Solutions
Expense Anomaly Detection
for Lark Teams
Kopi automatically identifies unusual expenses before they reach your approver queue — catching the S$12,000 hotel and the S$2,000 lunch that would otherwise slip through manual review.
Amount anomaly detection
Each expense amount is compared against historical norms for the same category and vendor. Outliers — above a configurable threshold — are flagged red for human review.
Duplicate submission detection
Kopi checks if the same expense has been submitted before, even with minor variations in amount or date. Duplicates are blocked before reaching the approver.
Suspicious timing patterns
Future-dated receipts, bulk submissions on the last day of month, and unusual submission windows are automatically flagged for review.
Category amount norms
Kopi maintains per-category spending norms for your team. A transport expense 3× the usual amount triggers a yellow flag with context for the approver.
Currency & exchange rate checks
Foreign currency expenses are validated against the day's exchange rate. Inflated conversions and wrong-currency submissions are detected automatically.
Policy violation detection
Expenses that violate configured spending caps, weekend submission policies, or prohibited vendor categories are flagged before approval.
How anomaly scoring works
Kopi scores each expense across 5 dimensions. Anomaly flags come from 3 of the 5:
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