Preparation inventory covers the time when a received resource is still being accepted, sorted, dried or otherwise prepared for use. It is identified by the function it performs, not only by where it is stored. If a material must be held for two days before production, a physically delivered batch is not necessarily available for release. The plan should show the preparation time, available balance and losses separately. Not every preparation operation is included in cost in the same way: an accounting conclusion requires the applicable standard and the facts of the process.
How to avoid an error
The error is to promise production on the day of delivery when production needs prepared material. In an educational schedule, subtract the preparation time from the consumption date and then determine the required arrival date. If the technology changes, recheck the duration of this stage instead of automatically carrying forward the previous standard.
For more on the connection between cost and write-downs: [educational analysis](/guides/inventory-cost-nrv/).
Sources and limits of review
Basis: **gl-mit-mrp**, **gl-mit-procurement**. The Russian term denotes a management function, not a separate mandatory IFRS line item. The example is editorial; the terms of a specific contract and the accounting treatment must be checked separately.
General educational models; IFRS is mentioned only to the stated extent; not a statement of current Russian rules.
Source references retained: gl-mit-mrp and gl-mit-procurement; two-day preparation example, production timing, available balance, losses, technology changes, accounting-standard and process-fact caveats preserved.
Educational material is not individual investment, legal or tax advice.
