A service level agreement usually sets out numbers — coverage percentage, response times, how quickly a vacant post gets filled. Most contractors genuinely meet them most months. The separate question, which only surfaces when a client asks, is whether you can prove it with something more specific than "yes, we did."
The difference between meeting and evidencing
Meeting an SLA happens operationally, shift by shift, largely invisibly when everything goes to plan. Evidencing it requires that each of those shifts left a record — who was rostered, who actually attended, what time cover was found when a gap occurred — that can be pulled together after the fact into something a client would accept as proof, not just an assurance.
What tends to be missing when it's asked for
- Attendance recorded against the rostered shift, rather than just "the site was covered" as a general statement
- A timestamp for how a cover gap was filled, not just that it eventually was
- A clear distinction between a shift that ran as planned and one that ran with a substitute officer
- A consistent method of counting, so this month's numbers are comparable with last month's
The last point matters more than it sounds. An SLA report that changes its own definition of "covered" from month to month is not really evidence of performance — it is a number that happens to look acceptable, produced by whoever assembled it that particular week.
Where this connects to reporting generally
SLA evidence is a narrower version of the same problem covered in client reporting: what to send, how often, and what it costs you — the report is only as trustworthy as the records underneath it, and rebuilding those records by hand every month is both expensive and the point at which small inconsistencies creep in.
If attendance and cover are recorded against the rostered shift as a matter of course, SLA evidence becomes a view of that data rather than a project someone has to run before a contract review.
Key takeaways
- Meeting an SLA and being able to evidence it are separate capabilities
- Evidence depends on attendance and cover being recorded against the rostered shift itself
- Keep the definition of "covered" consistent month to month, or the numbers stop being comparable
- Build SLA reporting from existing operational records rather than reconstructing it before a review
- Check exactly what your contract's SLA requires as proof, not just what it requires as performance
The SecureOptix team
Written by people who work daily with security contractors on SIA licensing, screening and the records that hold up under an inspection.