Costco Code CST-ALW: Promotional or new depot opening allowance deduction.
Costco Promotional and New Depot Opening Allowance deductions withhold funds for introductory distribution, new warehouse openings, or agreed promotional programs. They are disputable if double-deducted or applied outside contract terms.
Why Costco issues Code CST-ALW.
- Allowance deducted both off-invoice and via depot AP adjustment
- New depot opening allowance charged for non-opening replenishment orders
Documents that win.
- Signed Costco Vendor Agreement showing allowance terms
- Invoices proving off-invoice allowances already provided
- Remittance backup
How to dispute it.
Find remittance line for Code CST-ALW in Costco Depot Accounts Payable & Buyer Resolution. Note the PO, invoice number, and claim amount.
Collect and verify documentation: Signed Costco Vendor Agreement showing allowance terms, Invoices proving off-invoice allowances already provided, Remittance backup. Ensure piece counts and timestamps match.
File dispute claim package via Costco Vendor Portal selecting claim reason for Code CST-ALW (Promotional or new depot opening allowance deduction) and attaching all verification documents.
Monitor claim status in Costco Vendor Portal until approved (30-45 days). Approved credit memo will apply to a future settlement remittance.
Dispute within 6 to 12 months of deduction issuance. Check your remaining filing window with our free Dispute deadline checker.
Source: Costco supplier guidance · Verified by Laxmi Narayan · 2026We audit remittances, assemble proof documents, and handle end-to-end Costco deduction recovery on pure contingency. We'll check whether yours is disputable, free, in 72 hours.