7 Signs Your UK University Needs a Legacy SIS Replacement

Many UK higher education institutions delay replacing their student information system, often due to competing priorities, funding constraints, and the risk of large-scale change, until operational failures begin to force the issue.

The registry team is manually correcting HESA exports close to the submission deadline. The IT team is maintaining integrations that nobody fully understands and that are unreliable. By the time those patterns become visible, the institution is already paying a significant operational cost for a system that is no longer fit for purpose.If your institution is evaluating a legacy SIS replacement, these seven signs can help clarify whether that moment has arrived.

When your system is working against you

These signs are not edge cases or future risks; they are present-day operational realities for many institutions with legacy systems.

1. Compliance relies on workarounds, not the system

Statutory reporting should flow from a well-configured SIS. In many institutions, HESA and OfS returns rely on workarounds: spreadsheets, reconciliation scripts, and manual checks before submission. The cost is not just staff time, it is regulatory exposure if returns are incorrect, and the reputational risk that follows.

2. IT resource is consumed maintaining the SIS

Internal resource becomes absorbed by patching, maintaining bespoke customisations, and keeping legacy integrations running. When the loss of a single experienced team member would create a critical failure point, the issue is structural rather than operational, and it compounds over time.

3. Every integration requires bespoke development

A modern SIS should connect cleanly to finance, timetabling, and learning platforms. If every integration requires custom code, the institution is maintaining a patchwork rather than an integrated system, and that patchwork becomes more complex and costly each year.

4. Staff rely on shadow systems

One theme we keep hearing across the sector is that when teams maintain parallel processes in spreadsheets, it signals a loss of trust in the system and results in compromised data integrity. The SIS may still be running, but operationally it has been sidelined.

When your SIS cannot support where you are heading

The first four signs reflect daily friction; these next three point to longer-term risk.

5. There is no credible path to cloud

On-premise environments require ongoing infrastructure investment and resource-heavy upgrade cycles. Where a vendor’s cloud roadmap is unclear, institutions risk being locked into a depreciating asset with rising total cost of ownership.

6. New provision exposes structural gaps

Apprenticeships, FE-delivered degrees, joint awards, and credit-bearing short courses all expose the limits of traditional SIS design. Curriculum models that don’t support non-traditional learning, or systems that can’t handle multiple intake points without workarounds, quickly surface missing fields, rigid workflows, and reporting that breaks under pressure. The right SIS should make it easier to launch new kinds of provision, not become the reason they are delayed. Institutions benefit from a SIS that can support evolving academic models rather than constrain them.

7. The Lifelong Learning Entitlement is already here

Applications for Lifelong Learning Entitlement funding opened this autumn, and the first modular courses start in January 2027. Students will be able to fund individual modules rather than full years, building qualifications over time and across providers. Systems designed around fixed, traditional cohorts are unlikely to support this without significant redevelopment, often approaching the cost and effort of full replacement.

When the signs start to add up

Few institutions replace a student information system lightly. But mounting pressure on registry teams, fragile integrations, reliance on spreadsheets and uncertainty around requirements such as the Lifelong Learning Entitlement (LLE) can signal that an existing system is reaching its limits.

Recognising these signs early gives institutions greater control over the timing and impact of change, helping avoid reactive decisions driven by compliance pressures or operational challenges.

If these challenges sound familiar, our guide to the 12 questions to ask any shortlisted vendor can help you assess whether a modern SIS will meet your institution's evolving needs.

To explore further, speak to our team about our implementation approach, realistic timelines and a Supported Sandbox Session, giving your team the opportunity to experience the system first-hand.

About the authors: the Thesis SM Team

This article was written by colleagues from across Thesis SM. Many of us have worked inside UK universities or spent years delivering student information systems for them, and the article draws on what they see day to day in SIS replacement projects. Thesis SM (Student Management) is a cloud-native student information system built