Underpinning Contract (UC)

What Is An Underpinning Contract?

An underpinning contract is an agreement between an IT service provider and a third-party supplier that supports the provider’s service commitments.

As the name suggests, a UC supports the commitments an IT provider has made to its customers. For example, if an IT provider promises 99.9% application uptime, it needs an underpinning contract with its ISP that guarantees the connectivity required to meet that target.

Unlike agreements with internal teams, a UC is usually a formal contract with an external supplier, and its legal effect depends on the specific agreement and jurisdiction. It helps ensure the provider can hold the supplier accountable for meeting the service levels needed to fulfill customer commitments.

How Does an Underpinning Contract Work?

A UC works by setting clear, measurable service targets for a third-party supplier that support the commitments an IT provider makes in its SLA. These targets typically cover availability, response times, service hours, and other performance standards.

Once signed, the contract may be legally enforceable, depending on its terms and applicable law. If the supplier fails to meet its obligations, the UC defines the remedies, such as service credits or penalties, helping the provider hold the supplier accountable.

Underpinning contracts are commonly used with ISPs, cloud providers, hardware maintenance vendors, and outsourced service providers.

What Is the Difference Between a UC, an SLA, and an OLA?

A UC, SLA, and OLA are related service agreements, but they differ in purpose and in who the agreement is between.

• Underpinning contract (UC): Between the IT service provider and a third-party supplier

• Service level agreement (SLA): Between the IT service provider and the customer

• Operational level agreement (OLA): Between the IT service provider and an internal team

The SLA defines the service commitments made to the customer. The OLA ensures internal teams meet their responsibilities, while the UC ensures third-party suppliers deliver the services needed to support those commitments. Together, OLAs and UCs help the IT provider meet its SLA targets.

What Does an Underpinning Contract Include?

A UC defines the terms needed to measure and enforce supplier performance. Most include these core elements:

• Services the supplier provides

• Start, end, and renewal terms

• Service hours and agreed performance targets

• Responsibilities of each party

• Escalation paths and key contacts

• Pricing, charges, and penalties for missed targets

• Security, confidentiality, and compliance requirements

• Review, change, and termination clauses

Clear, specific terms make it easier for the provider to hold the supplier accountable when performance falls short.

Why Are Underpinning Contracts Important?

Underpinning contracts matter because they close the gap between what an IT provider promises and what it controls. Much of an IT service now runs on third-party suppliers.

Without a UC, the provider may have less contractual recourse if a supplier fails to meet expectations. A supplier failure can contribute to an SLA breach, even though the provider remains accountable to the customer.

A UC also gives supplier management clear performance standards, making it easier to measure suppliers against agreed targets.