HAM (Hardware Asset Management) and SAM (Software Asset Management) are the two core disciplines of IT Asset Management that, when integrated into ServiceNow, enable financial control, compliance, and governance based on reliable data. HAM manages the lifecycle of physical IT assets—from laptops to servers—while SAM controls licenses, actual usage, and compliance of on-premises, cloud, and SaaS software. Operating both in an integrated way, with the CMDB as the single source of truth, is what transforms ITAM from an operational function into a strategic pillar.
What is Hardware Asset Management (HAM)?
HAM is the discipline responsible for managing the entire lifecycle of physical IT assets, from acquisition to secure disposal. Its core objectives are:
- Controlling physical assets such as laptops, servers, and network devices.
- Manage lifecycle stages and control depreciation and book value.
- Ensure safe and regulatory-compliant disposal.
- Supporting IT operations with reliable location data and accountability.
HAM in ServiceNow
In ServiceNow, the HAM module offers workflows integrated with purchasing processes and complete financial and operational visibility. Physical assets are directly linked to Configuration Items (CIs) in the CMDB, ensuring data consistency for ITSM and impact analysis.
What is Software Asset Management (SAM)?
SAM is the discipline that manages software licensing, actual usage, and compliance—whether on-premises, cloud, or SaaS. Its main objectives are:
- Ensure compliance with contracts and manufacturer audits.
- Optimize spending on licenses and subscriptions.
- Monitor actual software usage and recover unused licenses.
- Reducing legal and financial risks in audits
SAM in ServiceNow
With ServiceNow SAM Pro, companies gain automatic software discovery, data normalization, and continuous compliance calculation. Reclaim workflows continuously identify and recover idle licenses, reducing OpEx waste. For a complete overview of implementation, see the page on [link to implementation page]. Software Asset Management (SAM).
HAM and SAM: main differences
Although complementary, HAM and SAM have distinct focuses: HAM manages physical assets and is linked to CapEx; SAM manages licenses and subscriptions, focusing on OpEx and compliance.
| Feature | HAM | SAM |
|---|---|---|
| Main function | Physical asset lifecycle | Licenses, contracts and compliance |
| Asset type | Notebooks, servers, network devices | On-premises software, SaaS, subscriptions |
| Financial focus | CapEx, depreciation, TCO | OpEx, renewals, license optimization |
| Mitigated risk | Loss of assets, idle capacity, unnecessary purchases. | Fines, non-compliance, audits |
| Degree of automation | Medium — physical inventory and integration with CMDB | High-level — discovery, normalization, and compliance |
| Integration with CMDB | Registers and maintains reliable physical ICs. | It relates software, users, and physical assets. |
Operating HAM and SAM in isolation compromises the reliability of the CMDB and generates inconsistent data for ITSM and strategic decisions.
Why integrating HAM and SAM is essential
In practice, software always runs on hardware. In hybrid and virtualized scenarios, licensing responsibility depends on the device, the user, and the environment. Without integration:
- Servers exist in the HAM without visibility into installed software.
- Licenses are purchased without any correlation to the actual hardware fleet.
- CMDB is losing credibility as a basis for ITSM and ITOM.
With HAM and SAM integration in ServiceNow, costs are allocated correctly, there is visibility from the device to the software and service, and the CMDB becomes reliable for impact analysis and change management. To understand how this relates to IT operations, see [link to relevant documentation]. IT Asset Management (ITAM).
How ServiceNow enables HAM and SAM integration
CMDB as the sole source of truth.
The CMDB connects hardware assets, software installations, licenses, users, and business services. Strategic decisions are then based on consistent and auditable data.
Common data model and normalization
ServiceNow uses standardized hardware and software catalogs combined with automated discovery data, reducing inconsistencies and manual rework.
Integrated workflows
- Purchases generate assets and update licenses automatically.
- Hardware retirement adjusts software compliance in real time.
- Changes utilize CMDB relationships for risk analysis.
Practical checklist for ITAM managers
- Define clear responsibilities for HAM and SAM.
- Ensure adequate Discovery coverage before implementing SAM.
- Maintain correct relationships between Assets, CIs, and Software in the CMDB.
- Integrate shopping catalog with standardized templates.
- Automate hardware disposal and license reclaim.
- Utilize dashboards that combine cost and compliance for executive insight.
Real impact on ITAM: from operational to strategic
Companies that integrate HAM and SAM into ServiceNow with a structured CMDB leave reactive management behind. The result is a data-driven ITAM operation: control of CapEx and OpEx in a single dashboard, continuous compliance, reduced risk in manufacturer audits, and real-time executive visibility. 4MATT, a ServiceNow Elite Partner in Brazil with the Technology Excellence Partner Award 2024–2025, implements this integration with its own methodology, combining expertise in HAM, SAM, CMDB, and ITSM with more than 80 certified specialists.