Inventory8 min read

Inventory control

Inventory control explains both how many items the shop owns and which costs should move to COGS when an item sells.

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Lots and cost layers

A lot records an acquisition source, local date, quantity, and unit cost. Serialized slabs and unique cards use specific identification. Fungible duplicate singles and sealed products consume the oldest available FIFO layers.

Valuation policy is an accounting decision

Do not change FIFO or specific-identification treatment merely to alter margin. A policy change requires accountant review and must not rewrite historical movements.

Bring inventory into the shop

  • Beginning lots belong in New-business setup.
  • Vendor purchases use an inventory receipt tied to the vendor or bill.
  • Accepted buylists create acquisition lots after physical receipt.
  • Customer returns restore inventory only when the item is actually resalable.

Adjust a count or value

  1. 1

    Count and identify the affected layer

    Choose the actual product or lot and the difference from recorded quantity or carrying value.

  2. 2

    Choose the real reason

    Use count correction, damage, theft, return, or write-down. Add enough detail for a later reviewer.

  3. 3

    Post once

    Submit the adjustment once. If an exception appears, follow the recovery instructions shown in the application rather than repeating the adjustment.

Reconcile inventory

Quantity on hand should equal the remaining lot layers, while inventory valuation should equal their carrying cost. Sales-driven movements should tie to COGS, and unresolved adjustment recovery items should be zero before period close.

Still unsure?

Pause before posting, approving, refunding, or moving money. Ask the owner or the role responsible for that workflow to review the source record with you.

This guide explains software workflows only. It is not legal, tax, accounting, payroll, employment, or security advice. Requirements and provider availability can change; confirm current obligations with the relevant agency and qualified professionals.