What evidence do auditors commonly ask for on AM-01 Asset Inventory?

Inventory extract showing owner, location, lifecycle state and the risk relevant attributes per asset; Discovery tooling configuration and its reconciliation report against the recorded register; Field level change history identifying who altered an inventory record and when; Procedure defining the triggers that force an inventory update at acquisition, transfer and retirement.

What is the most common gap auditors find on AM-01?

Register rebuilt by hand in a spreadsheet and already out of date at the time of audit

BSI C5 (121-criteria catalogue) · C5: Asset Management

`AM-01` Asset Inventory

Maintain inventory procedures that keep asset records complete, accurate, valid and consistent throughout the asset lifecycle, whether populated automatically or by the responsible owners, hold the attributes the risk procedure needs including the measures applied, and log every change to those records.

Source: BSI C5 (121-criteria catalogue), AM-01. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open BSI C5 (121-criteria catalogue) in the compliance library.

The edition of the catalogue is not stamped here; check the edition your attestation is issued against.

artefacts

held by a system

at each review

easy

to go live

Policy repository / GRC workspace

where the evidence lives

teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

Inventory extract showing owner, location, lifecycle state and the risk relevant attributes per asset · Policy repository / GRC workspace
Discovery tooling configuration and its reconciliation report against the recorded register · Cloud console / configuration management
Field level change history identifying who altered an inventory record and when · Policy repository / GRC workspace

periodic reviewEvidence produced at each review

none for this control

governing documentDocuments that govern the control

Procedure defining the triggers that force an inventory update at acquisition, transfer and retirement · Policy repository / GRC workspace

First move

Automate the pull from your Policy repository / GRC workspace. Version-controlled policy set with approval metadata; review dates tracked as records, not a calendar note.

Common gaps auditors find

Register rebuilt by hand in a spreadsheet and already out of date at the time of audit
Instances created by automation or autoscaling never reach the register
Entries carry hostnames only, without the ownership and protection attributes the risk procedure consumes
Retired items still show as active because no retirement update is ever recorded

Do this for your whole sheet

Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.

Build my evidence sheet

AM-02 Acceptable Use and Safe Handling of Assets Policy