What an in-tray exercise actually tests
An in-tray (or e-tray, its digital equivalent) exercise presents you with a simulated inbox of emails, memos, and documents representing a typical, overloaded workday, and asks you to prioritise, respond to, and make decisions across them within a fixed, usually tight, time limit. Assessors are testing genuine prioritisation judgement, attention to detail, and decision-making under realistic time pressure and competing demands, closely mirroring real management and coordination work.
How to approach the exercise
Spend the first few minutes scanning every item briefly before acting on any single one, since some later items often affect how you should have handled earlier ones (for example, a later message might reveal that an earlier request has now become urgent, or is no longer relevant). Rank items by genuine urgency and importance together, not just whichever arrived first or looks most dramatic, and be explicit in your responses about your reasoning, since assessors evaluate the quality of your judgement, not just the final action taken.
Common mistakes that cost the most marks
Working strictly in the order items arrived, rather than by genuine priority, is one of the most common and costly mistakes, since exercises are deliberately designed with lower-priority items appearing early and higher-priority ones later. Spending too long crafting a perfect response to one item at the expense of addressing the full in-tray is another frequent error, since most exercises reward broad, sound coverage over a small number of polished responses.
How to prepare
Practise with genuine timed in-tray or e-tray exercises to build comfort with the format and pace, since the time pressure itself catches many capable candidates off guard on a first attempt. Develop a quick, consistent triage habit (urgent and important, important but not urgent, and low priority) that you can apply rapidly across a large volume of simulated items.