Expense anomaly scan
Weekly expense anomaly scan — flag duplicates, vendor spikes, and out-of-policy charges before close.
Eluu — expense-anomaly-scan
Shown in preview 
Runtime ~3 min per run
Tokens ~10K per run
Owner a finance colleague
Works with
Pick whichever tool your team already uses.
- Messaging Slack
Teams - Spreadsheet Google Sheets
Excel - Accounting QuickBooks
Xero 
NetSuite
What it does
Expense anomalies hide in line items finance doesn’t have time to review every week. This recipe scans the week’s transactions, flags duplicates / vendor spikes / out-of-policy charges, and posts a digest that gives finance a 5-minute pre-close review instead of an end-of-month surprise.
How it works
- Pull transactions. Every transaction from the last 7 days is pulled with category, vendor, amount, and owner.
- Detect anomalies. Duplicate charges (same vendor + amount + day), vendor week-over-week deltas, and policy-threshold breaches are flagged. Each gets a suspicion score.
- Post. Flagged anomalies post to #finance-ops with the spend owner tagged and the top items rendered.
Setup
- Connect an accounting tool (QuickBooks, Xero, or NetSuite).
- Connect a spreadsheet destination (Google Sheets or Excel).
- Connect a messaging channel (Slack or Teams).
Variations
- Run a monthly version with category-level trend analysis.
- Auto-block payments above a configurable threshold pending review.
- Add a vendor-onboarding hook for any new vendor over a set spend amount.
