The problem
Small variances can be scattered across thousands of transactions.
Finance teams usually already have ERP, spreadsheets, and reconciliation. The problem appears when invoices, payments, credit notes, references, and supporting evidence cannot be compared easily as one case.
PRA is not designed to generate the largest possible anomaly list. It separates evidence-backed cases from noise that is not worth pursuing.
Too much money went out
Duplicate payment, duplicate invoice, wrong price, wrong quantity, or settlement amount above what should have been paid.
Credits that should have landed
Supplier credit, credit note, return refund, rebate, or discount exists but has not been applied to settlement.
Deductions that need proof
Short payment, promo/rebate deduction, return deduction, fee, or duplicate deduction that does not match agreements and evidence.