Supplier Invoices & Cost Review Practical guide
When a Case Size Changes, Recalculate the Effective Price
Watch quantity and unit size as separate fields
The short answer
A supplier can keep a case price steady while reducing the number or size of units. The invoice total may look unchanged even though the effective cost per usable unit rises.
How to approach it
Compare the current product specification with the prior invoice or catalog. Ask whether the SKU changed, whether the substitute was approved, and whether the invoice accurately describes the delivered quantity.
- Compare case count, units per case, and size per unit
- Calculate cost per common unit
- Document approval for any substitute product
Could this affect your business?
- Can you trace this charge to an approved order, accepted terms, and a delivery or service record?
- Would your review catch the same bill, a changed pack size, or a fee that appeared this month?
- Can a second reviewer reproduce the comparison from the original documents?
Where BizScoper fits
Keep the source record close to the decision
Money Leak Detector is being developed to surface possible duplicate charges, price changes, and invoice variances for human review. A flag is a question to investigate, not proof of an overcharge.
What this guide cannot determine
This article is general educational information, not legal, tax, accounting, or compliance advice. Rules and contract rights depend on the facts and jurisdiction. Confirm the applicable requirements with the issuing authority or a qualified professional.
Sources and further reading
BizScoper is in development
Know what was agreed, what arrived, and what the invoice says.
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