Food traceabilityLabels and stock
Stock adjustments: explain quantity changes without breaking the history
A stock adjustment should identify the affected product and lot, quantity, unit, reason and responsible person. Treating an adjustment as an unexplained overwrite can make both stock review and a later traceability exercise harder to understand.
At a glance
A stock adjustment should identify the affected product and lot, quantity, unit, reason and responsible person. Treating an adjustment as an unexplained overwrite can make both stock review and a later traceability exercise harder to understand.
Define the decision behind the record
Differentiate a physical event from a correction to an earlier entry. Recorded waste, a transfer and a counting correction have different meanings. Preserve the original transaction and use an identifiable adjustment rather than replacing the whole balance without context.
Separate the counted difference from its explanation
Define the lot, location, unit and period or event being reconciled. Preserve the expected balance and the actual count as separate facts. Decide who investigates differences and who can authorise an adjustment; the person entering a count should not be forced to invent a reason before the investigation occurs.
Search receipts, uses, transfers, returns and documented losses for the difference. Retain the source references and avoid double-counting internal movements. When an adjustment is authorised, record its quantity, reason, decision maker and relationship to the original discrepancy without replacing the earlier movement history.
Test a missing movement and an unexplained count difference. The first may be resolved by recovering actual event evidence; the second may remain an authorised adjustment with limitations. The review should make those outcomes distinct rather than presenting every balanced closing stock as proof that the material’s path is fully known.
Worked example
A count differs from the register. The team records the observed quantity and investigates under the approved process. The authorised adjustment keeps its reason and reference so a reviewer can reproduce the resulting balance.
Build a usable record
Use the fields below to capture the facts needed for this particular decision. Keep the actual observation separate from any later correction or approval.
- Product, lot and location
- Before and after quantities with units
- Reason and supporting reference
- Responsible author or approver
- Adjustment time and related event
Example record and review decision
Fictional record example: ADJUST-01 / ING-A: expected 6 kg, counted 4 kg, difference −2 kg, reason under investigation, reviewer and evidence.
Separate the counted fact from the explanation and retain the original movement history while investigating.
An adjustment can make a balance arithmetically match without explaining where the material actually went.
Test the review, not just the form
Recalculate a sample balance from the transaction history. Confirm an export distinguishes physical movements from administrative corrections. Review repeated adjustments as a potential process issue rather than automatically attributing them to the same cause.
A few useful answers
Should every discrepancy simply update the balance?
Record and investigate it under the applicable process so the reason and uncertainty remain understandable.
Does an authorised adjustment explain the physical movement?
It records a decision about the balance. Where the actual cause or destination remains unknown, preserve that limitation. An adjustment should not manufacture an event that the available evidence cannot support.
Sources and further reading
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