System ageing buckets comfort auditors until the warehouse disagrees. Bridging the two is a core skill in inventory valuation audits—and a place where false precision creeps in.
Prefer ranges over decorative decimals
If movement data only supports a band, write the band. A financial auditing app that demands a single cell can still hold a memo attachment explaining the interval. Reviewers prefer honest intervals to theatrical exactness.
Name the lag
WMS postings, returns processing, and inter-warehouse transfers create lag that masquerades as ageing. State the lag hypothesis and the test you ran. Silence reads like avoidance.
Tie back to write-downs
An ageing bridge that never influences the valuation conclusion is decoration. Module 3 of Valuation Studio insists every bridge end with a sentence on valuation impact—or a clear statement of none.