How CertaRelay researches retail deduction codes.
Our public deduction library is designed to help finance and accounts receivable teams understand a deduction before deciding whether to investigate or pursue recovery.
Start with primary sources
When retailer or distributor supplier documentation is publicly available, it is the preferred starting point for code names, processes, deadlines and evidence requirements.
Use specialist sources carefully
Established industry references can help explain a code when primary documentation is not publicly accessible. Those pages are labeled as public reference material.
Separate facts from guidance
We distinguish a published retailer requirement from a practical investigation suggestion. CertaRelay does not present a general industry practice as a retailer rule.
Preserve uncertainty
When a code, filing window or process cannot be verified from a current source, the page says so instead of filling the gap with an unsupported claim.
Review the transaction
A code definition is only the beginning. Useful investigation usually requires the remittance detail, original invoice, PO, shipment records, agreement and other transaction-level evidence.
Re-check before filing
Retailer portals, deadlines and supplier requirements can change. Always confirm the current retailer or distributor process before submitting a claim.
A useful reference should help a finance team decide what to do next.
The goal is not to publish the largest possible code list. The goal is to provide a practical starting point that reduces research time, clarifies what evidence matters and makes it easier to identify deductions worth investigating.