Find duplicate and split charges Prompt

Review the expense export below for charges that may be duplicated or incorrectly split.

Look for:
1. Same vendor and same amount within [NUMBER] days of each other
2. Same invoice number appearing more than once
3. One invoice split across multiple grants where the split totals more or less than the invoice amount
4. The same cost charged to two different grants
5. Round-number charges with vague descriptions (for example, "$500.00 – supplies") that may need backup

Return a table: Group #, Row numbers involved, Vendor, Amounts, Why it looks suspicious, What to check (invoice, receipt, approval).

Rank by dollar amount at risk, highest first. If you find nothing in a category, say so.

EXPENSE EXPORT:
[PASTE EXPORT ROWS WITH HEADERS]