Format guide · Updated October 2026

In-Tray and E-Tray Exercises: How They Work and How to Prioritise

An in-tray, or e-tray, simulates a busy inbox. You decide what to handle first, what to delegate and what to leave, usually in a short, stated scenario.

The short answer

An in-tray exercise puts you in a made-up job with a pile of emails, memos and requests, and asks you to prioritise and respond. It is a judgement exercise rather than a knowledge test, so the best preparation is a repeatable method for sorting tasks by deadline, consequence and who else depends on you.

A typical session, step by step

Providers differ, so treat this as a general picture rather than a rule. Many in-tray exercises, particularly those delivered at assessment centres, follow the same arc.

1
Briefing
You receive a role description, a date and time, and a short list of aims or constraints, for example "you are covering for your manager until 17:00".
2
The inbox
Five to a dozen or more items appear: emails, voicemail transcripts, calendar clashes, forwarded reports. Some are urgent, some are noise, and some conflict with each other.
3
Decisions
For each item you choose an action such as reply, delegate, schedule, escalate or defer. Some versions ask you to rank items or to write short replies.
4
Rationale
Some versions ask for a brief justification, either in writing or in a follow-up interview. Others only record your selections.

How in-tray tasks are usually marked

Marking depends on the format. Multiple-choice and ranking versions are normally compared against a key built by the test developers, often from the views of experienced staff. Free-text versions are commonly assessed by a trained person against a list of behaviours or criteria, and a few providers use automated scoring. Publishers rarely disclose exact weightings, so be wary of any number you read online that claims to describe them.

What assessors typically look for is consistent: you spotted the time-critical item, you did not ignore someone who depends on you, you noticed conflicts between items, and your actions were proportionate. Doing everything yourself, or ignoring the awkward email, tends to read as poor judgement.

A worked inbox

Scenario: it is Monday, 09:00. You are an office coordinator and must finish a board pack figure request by mid-afternoon. Six items are waiting.

ItemFromContentDeadline
AClient (Ms Okoye)Needs the renewal paperwork resent before 11:00 today or her quote lapsesToday 11:00
BManagerAsks for last month's figures for the board packToday 15:00
CSupplierInvoice differs from the purchase order by 340 EUR; payment is due on FridayFriday
DFacilitiesFire alarm test on Wednesday at 14:00; no action needed, for informationWednesday
EIT helpdeskYour password expires in five days; the reset takes a few minutesFive days
FColleagueAsks for lunch recommendations for a visitor next monthNone
Which item should you deal with first, and which last?
  • A first, F last
  • B first, D last
  • C first, E last
  • F first, A last
Answer: A first, F last
Item A has an external client, an hour-scale deadline and a concrete loss if missed (the quote lapses), and only you can resend the paperwork. Item F has no deadline, no consequence and can be answered later or politely declined. A reasonable full order is A, B, C, D, E, F. B is next because it is due today and others depend on your figures. C comes before D and E because money and a supplier relationship are involved. D is a diary note that takes seconds. E is quick and can be batched into a gap between bigger tasks. Other orderings of the middle items can be defended if you give a reason.

A prioritisation method you can reuse

Ask four questions of every item, in this order, and write down the answers if the format allows notes.

1
When is it due?
Separate "today" from "this week" from "no date". Time-boxed items go first.
2
What is lost if it slips?
Money, a client, safety and someone else's work outrank convenience. External parties usually outrank internal ones when deadlines are equal.
3
Does anyone depend on me?
If a colleague or manager is waiting on your output, your delay becomes their delay.
4
How long will it take, and could someone else do it?
Two-minute tasks can be cleared in a gap. Tasks that are not yours to own can be delegated with clear instructions or escalated.
If two items clash, for example a meeting request that overlaps your deadline, say so in your reply and propose an alternative rather than silently accepting both. This shows awareness of the conflict, which is often what the exercise is probing.

Common traps

Practising with ReasonEra

Free-text in-tray tasks scored by an assessor are outside what a screenshot tool can fully rehearse, so be clear about what ReasonEra covers: it is built for question types such as situational judgement, and a multiple-choice or ranking e-tray item can be uploaded as a screenshot for an explained answer. Choose "Tutor Explanation" to see why one action is preferred over another.

For structured practice, try the free situational judgement practice test. A free account has 3 trials, and the 14-Day Pass costs 49 € for unlimited use for 14 days. Some employer processes also contain questionnaires about work style; ReasonEra does not cover that part.

Practise on ReasonEra

Where ReasonEra fits

This tool is meant for the weeks before an assessment, but some assessments are proctored and many forbid any assistance, so check the instructions before you rely on any tool.

Frequently Asked Questions

What is the difference between an in-tray and an e-tray exercise?

They are the same idea in different media. An in-tray uses paper documents and an e-tray uses an electronic inbox, but both ask you to prioritise and respond to a set of tasks.

How long does an in-tray exercise take?

It varies a lot between providers and between assessment centres and online versions. Your invitation or the exercise instructions will state the time allowed.

Is there a right answer in an in-tray exercise?

In multiple-choice versions there is usually a keyed best answer, and in written versions assessors look for sound reasoning against set criteria. Several orderings can often be defended if you explain them.

Should I answer every item?

Read the instructions, since some versions expect you to triage and leave low-value items. Deliberately deferring or declining an item with a reason is usually better than a rushed reply.

How can I practise for an e-tray exercise?

Practise a fixed prioritisation method on made-up inboxes and do situational judgement questions to rehearse choosing between competing actions. Check how your target process scores answers.

Related guides

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Notes. The advice here reflects common practice across providers, so confirm specifics with the recruiter. Notice an error? Tell us at info@reasonera.com.