What evidence do auditors commonly ask for on ID.AM-04 Inventories of services provided by suppliers are maintained?

Inventory of services delivered by suppliers; Mapping of supplier services to business services; Service criticality scores; Renewal and end of life tracking; Service ownership matrix.

What is the most common gap auditors find on ID.AM-04?

Inventory derived from procurement records only

NIST CSF 2.0 · ID - Identify

`ID.AM-04` Inventories of services provided by suppliers are maintained

Inventories of services provided by suppliers are maintained. Control from NIST Cybersecurity Framework 2.0 framework, domain: ID - Identify.

Source: NIST CSF 2.0, ID.AM-04. 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 NIST CSF 2.0 in the compliance library.

artefacts

held by a system

at each review

hard

to go live

Vendor register / contract repository

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

none for this control

periodic reviewEvidence produced at each review

none for this control

governing documentDocuments that govern the control

Inventory of services delivered by suppliers · Vendor register / contract repository
Mapping of supplier services to business services · Vendor register / contract repository
Service criticality scores · Document repository
Renewal and end of life tracking · Document repository
Service ownership matrix · Policy repository / GRC workspace

First move

No system holds this evidence for you: it is people and documents. Reminders and routing to the owner still save time. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date.

Common gaps auditors find

Inventory derived from procurement records only
Mapping to business services missing
End of life dates not tracked
Ownership unclear for shared services

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

ID.AM-03 Representations of the organization's authorized network communication and internal and external network data… · ID.AM-05 Assets are prioritized based on classification, criticality, resources, and impact on the mission