Practical inventory guide
Theoretical shipment weight is the sum of the served quantities multiplied by their frozen item or presentation weight; actual package weight remains a separate observation.
Calculate only the quantities assigned to each shipment line. If any required weight is unknown, mark the theoretical total incomplete rather than treating the missing value as zero. Record actual package weight when the operation needs it.
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The short answer
This distinction changes the decision you can safely make.
Calculate only the quantities assigned to each shipment line. If any required weight is unknown, mark the theoretical total incomplete rather than treating the missing value as zero. Record actual package weight when the operation needs it.
Worked example
Use exact units and keep each quantity in the right category.
A shipment contains 8 units at 1.25 kg and 2 cases at 6 kg. The known theoretical weight is 8 × 1.25 + 2 × 6 = 22 kg. If the case weight were unknown, the complete theoretical total would be unknown even though 10 kg of known item weight could still be shown as partial context.
Decision table
Check the facts before choosing an action.
| Weight | Source | Use |
|---|---|---|
| Unit/presentation gross | Catalog snapshot | Theoretical planning |
| Shipment theoretical | Assigned shipment-line quantities | Package planning |
| Incomplete flag | Any unknown required weight | Prevents silent zero |
| Actual | Scale or operator observation | Real handover record |
Common mistakes
Avoid shortcuts that create confusion later.
- Using the whole delivery weight for every shipment
- Treating unknown weight as zero
- Recalculating a confirmed shipment after catalog weight changes
- Claiming volumetric weight or carrier-rated weight
How KnownStock handles it
The product keeps the explanation with the number.
KnownStock freezes served quantity and weight context at delivery confirmation. Package, carrier and tracking changes do not create another inventory event.
Ready for a verifiable first movement
Start with one item, one warehouse and one quantity you can explain.
Create a workspace without a card. Use removable sample data or enter one real record, then follow the practical manual at your own pace.