How to Spot Unusual Fleet Activity Before It Escalates

Why unusual fleet activity is difficult to spot

Day-to-day there are many issues that can happen for fleet managers and the harder issues to spot are the small changes hidden among thousands of fuel and EV charging transactions. A purchase may look reasonable on its own but become worth reviewing when the vehicle’s location, mileage, route, working pattern or previous spend are analysed.

Reports and spreadsheets make this harder to review because data is often fragmented and sits across separate systems. Results from Allstar’s recent data of 300 UK fleet decision-makers explains that 36% of respondents use four or more systems to manage their fleet data. Teams may need to export transactions, check mileage, search telematics and ask a driver for context before they can answer one simple question: does this activity make sense for this vehicle and this business?

An unusual transaction is not proof of fraud or misconduct, it is a signal that may need context and the aim is to find the exceptions worth investigating sooner, while keeping people in control of the decision.

The signals worth reviewing

The most useful checks look for a change from expected behaviour, that could be unexpected spend, out-of-policy behaviour or a pattern that does not fit how a vehicle or driver normally operates within the business.

Why a spreadsheet review can miss the pattern

Whilst a spreadsheet can tell you what was purchased, it may not, however, tell you what changed or why the transaction matters. Manual checks also focus on individual rows, while potential misuse often appears as a pattern across time, drivers, cards or sites.

This is where better fleet intelligence can help businesses of all sizes. Allstar will soon provide payment reporting that shows clearer signals, practical alerts and decision support. It will flag any issues, explain why it matters and help fleets understand what needs their attention to help them make their next decision.

A practical investigation process

When a transaction stands out as unusual, use a consistent process to analyse it. Start with the basic facts: date, time, location, product, quantity, value and the card or account used. Then compare the purchase with driver and vehicle activity, mileage, route, tank capacity and the driver’s working pattern.

Next, look for a legitimate explanation as to why something might look different. A changed job site, emergency call-out, traffic delay, vehicle fault or idling may explain an increase, however if the activity still doesn’t seem what is normal for the business, speak with the relevant driver or manager and record the outcome. Where policy allows it, consider whether a card limit, or permission change is appropriate while the review continues.

A clear audit trail helps finance, operations and fleet teams apply the same standard each time. It also makes it easier to show what was reviewed, what evidence was considered and why an action was or wasn’t taken.

How to improve visibility of data without adding more admin

Start with good foundations by assigning cards to the right driver or vehicle, set limits that reflect real operating patterns, capture mileage consistently and keep fuel and EV charging records together where possible. Digital receipts and one view of transactions can reduce reconciliation and VAT administration.

Allstar will soon be able to help turn everyday fleet questions in to clear, AI generated answers. Whether a fleet manager asks about fuel spend, public EV charging, transactions or trends in everyday language, fleet managers will be able to get the insights they need to see what’s changed and make better informed decisions.

For mixed fleets, review the same principles across fuel and public charging. Different energy types may have different costs and operating patterns, but the management question is the same - can the business see what happened, understand why it changed and act with confidence?

Keep the process fair and controlled

As a fleet manager, good data monitoring supports better decisions, it shouldn’t turn every anomaly into an accusation. By setting up a review process, it’ll help fleet managers to get to know their data;

Allstar’s approach is to keep the customer in control and so soon, Allstar will introduce AI-enabled insight that will help surface unusual activity, explain the reason for an alert and prioritise what needs attention. The fleet manager will still review the evidence, confirm any action and remain responsible for the outcome.

See more of what matters across your fleet

If unusual activity is buried in reports, the answer is not always another spreadsheet. A clearer view of fuel, EV charging and fleet activity can help teams spend less time searching and more time deciding what matters. With Allstar Online, businesses can manage cards, spend limits, invoices and reporting in one place. Allstar One supports fuel payments, while Allstar Chargepass brings fuel and public charging together for mixed fleets.

Explore Allstar Online | Learn about Allstar One | Learn about Allstar Chargepass