In-Tray & E-Tray Exercise: The Complete Preparation Guide 2026
Everything you need to know about in-tray and e-tray exercises — what they test, how items are scored, which employers use them, proven prioritisation frameworks, and a step-by-step approach for every item type.
What is an In-Tray Exercise?
An in-tray exercise (also written "in-tray") is a simulation-based assessment that presents you with a hypothetical work scenario — typically playing the role of a newly appointed manager or professional — and requires you to work through a pile of emails, memos, reports, and requests within a fixed time limit.
The exercise tests how you prioritise competing demands, handle ambiguity, delegate, escalate, and make decisions with incomplete information — all core skills for management and professional roles.
In-tray exercises originated in paper-based assessment centre practice but most are now digital ('e-tray') and accessed via a browser. The underlying structure and scoring criteria remain almost identical whether paper or digital.
In a typical exercise, you're told you've just arrived in a new role (e.g., "You are a new Regional Manager at Highbridge Consulting") and must work through a set of 15–25 inbox items — emails, memos, voicemail summaries, meeting requests, and reports — in 20–35 minutes. You're asked to:
- Prioritise items by urgency and importance
- Draft responses or actions for selected items
- Make clear decisions on ambiguous situations
- Explain your reasoning in a written rationale document
In-Tray vs E-Tray: Key Differences
While both formats test the same underlying competencies, there are meaningful practical differences you should know before your assessment:
| Feature | Traditional In-Tray | E-Tray Exercise |
|---|---|---|
| Format | Physical papers / printed documents | Browser-based digital interface |
| Responses | Handwritten notes on documents | Typed emails, drop-down selections, multiple choice |
| Navigation | Linear (paper pile) | Non-linear, links between documents |
| Scoring | Assessor reviews written responses | Automated or semi-automated |
| Time tracking | Assessor monitors, self-managed | System may limit time per item |
| Employer examples | Civil Service (some), older bank formats | HSBC, Civil Service (FAST), EY, KPMG |
E-tray exercises at some employers (particularly Civil Service Fast Stream) include a debrief stage where you discuss your decisions in a follow-up interview. This means you must be able to articulate your reasoning clearly — not just make correct decisions, but explain why.
Which Employers Use In-Tray Exercises?
In-tray and e-tray exercises are used most commonly in public sector, financial services, and large graduate scheme recruitment. Here are the major employers and their formats:
| Employer | Format | Stage | Notes |
|---|---|---|---|
| Civil Service Fast Stream | E-tray (online) | FSAC day | Part of the Fast Stream Assessment Centre |
| HSBC | E-tray | Assessment centre | Part of graduate assessment day |
| EY | Inbox simulation | Assessment centre | Part of business services assessment |
| NHS Graduate Management | In-tray | Assessment centre | Paper-based or digital depending on cohort |
| Police Assessment Centre | Written exercise | National Assessment Centre | Different format but similar competencies |
| Local government | In-tray | Assessment centre | Common for management roles |
| Big 4 (various) | E-tray / inbox simulation | Virtual or in-person AC | Format varies by firm and year |
For a full overview of the assessment centre process — including all the other exercises you may face on the day — see our complete assessment centre guide.
What Competencies Are Assessed?
In-tray exercises are designed to assess a cluster of management and professional competencies. While the exact framework varies by employer, the following are consistently tested across all major in-tray formats:
- Prioritisation: Ability to rank competing demands correctly — urgent vs important; business-critical vs routine
- Decision-making: Making sound judgments under time pressure with incomplete information
- Planning & organisation: Sequencing actions logically, delegating appropriately
- Communication: Quality of written responses — clarity, tone, professionalism, brevity
- Commercial awareness: Understanding business context — financial implications, stakeholder management, customer impact
- Problem-solving: Identifying root causes within items, connecting related items
- Judgment under pressure: Staying calm, systematic, and thorough with a ticking clock
Assessors score you not just on WHAT you decide, but HOW you communicate your reasoning. A correct prioritisation decision with no explanation scores less than a reasonable decision with clear, professional rationale. Always write brief justifications.
Common Item Types Explained
In-tray exercises contain a deliberate mix of item types at varying levels of urgency and importance. Recognising each type quickly is a core preparation skill:
| Item Type | Description | Typical Response |
|---|---|---|
| Routine email | Standard administrative request | Brief acknowledgment or delegation |
| Urgent problem | Complaint, crisis, or time-sensitive issue | Immediate action or escalation decision |
| Meeting request | Calendar conflict or scheduling demand | Accept, decline, or reschedule with reason |
| Report/memo | Background information to inform other decisions | Read and use to contextualise other items |
| Staff issue | HR concern, underperformance, or conflict | Appropriate HR response; don't overstep |
| Financial item | Budget query, overspend, or invoice | Flag to relevant person or authorise |
| Red herring | Low-priority item designed to distract | Deprioritise explicitly |
Red herring items are a deliberate test of prioritisation. Spending significant time on a trivial item (e.g., a request to choose office supplies) while a genuine crisis (e.g., a major client complaint) remains unanswered is one of the most common in-tray failure modes.
Prioritisation Frameworks (URGENT/IMPORTANT)
The key skill in an in-tray exercise is rapid, defensible prioritisation. Two frameworks are most useful:
The Urgent/Important Matrix (Eisenhower Matrix)
The Eisenhower Matrix divides all items into four quadrants based on urgency and importance. Applying this mentally to each item gives you a defensible rationale for your prioritisation decisions:
- Urgent + Important (DO FIRST): Crisis, deadline today, major client issue — address immediately in the exercise
- Important + Not Urgent (SCHEDULE): Strategic planning, proactive communication — note for later action
- Urgent + Not Important (DELEGATE): Administrative requests, routine queries — brief instruction to a direct report
- Not Urgent + Not Important (DROP/LAST): Red herrings, trivial items — explicitly deprioritise or ignore
| Urgent | Not Urgent | |
|---|---|---|
| Important | DO FIRST — address in exercise time | SCHEDULE — note for later action |
| Not Important | DELEGATE — brief instruction to delegate | DROP / LAST — ignore or final priority |
The PRDC Method
A structured four-step approach designed specifically for in-tray exercises:
- P = Prioritise: Rank all items 1–5 before acting on any of them
- R = Read fully: Don't skim before completing your initial ranking — a full read reveals context
- D = Decide and respond: Draft focused responses for your top-priority items
- C = Connect: Spot linked items (e.g., a staff complaint + an HR policy memo are related and should be handled together)
Always spend the first 3–5 minutes reading all items before responding to any of them. Candidates who immediately start responding to the first item they see often miss critical context buried in later items that changes how the early items should be handled.
How to Approach the Exercise: Step-by-Step
Follow this structured sequence for every in-tray and e-tray exercise. The time allocations assume a 30-minute exercise — adjust proportionally for different lengths:
Read the scenario brief (2 min)
Absorb your role, the company context, and any constraints mentioned. Who do you report to? What are your responsibilities? What isn't in your remit? Understanding the boundaries of your authority shapes every decision that follows.
Skim all items (3–4 min)
Read every item heading and subject line. Note urgency signals — words like "urgent", "deadline today", "complaint escalated", or "client threatening". Don't respond to anything yet.
Quick-rank items (2 min)
Label each item: A (urgent/important), B (important/not urgent), C (delegate), D (ignore). Look for connected items — a complaint email and a policy memo that are related should be handled together.
Respond to A items first (10–15 min)
Write clear, professional responses. Use a consistent format: acknowledge the issue, state your decision or action, give brief reasoning, end with the next step or who is responsible. Keep each response under 150 words.
Address B items as time permits (5–8 min)
Brief scheduling notes or action items for important but non-urgent matters. A one-sentence response stating what you'll do and when is sufficient for B items.
Write a summary rationale if required (3–5 min)
Some exercises ask for a written summary of your prioritisation. This is high-value for scoring — be explicit about your reasoning. Name the items you prioritised, explain why, and acknowledge trade-offs. This is where strong candidates separate themselves from average ones.
Review for missed connections (1–2 min)
Quickly check if any items you haven't actioned are connected to items you have. If a staff complaint email is related to an HR policy memo you actioned, cross-reference them in your rationale.
Allocate no more than 2–3 minutes per item response — long, discursive emails look like poor time management, not thoroughness. Assessors reward concise, decision-focused communication.
Preparation Plan & Practice Strategies
Three weeks of targeted preparation is sufficient for most candidates. The key is combining conceptual understanding with timed practice — not just reading about the exercise, but actually doing it under pressure:
| Week | Focus | Activities |
|---|---|---|
| Week 1 | Understand the format | Read 2–3 employer example in-tray exercises; practise Eisenhower matrix on everyday scenarios; study your target employer's competency framework |
| Week 2 | Timed practice | Complete 2–3 full practice in-tray exercises under timed conditions; review scoring rubrics; identify weak item types |
| Week 3 | Debrief & refine | Review mistakes; practise writing clear rationale paragraphs; practise reading speed for dense memos; run a final full exercise the day before |
The best preparation is reading sample in-tray exercises from your specific employer. Civil Service Fast Stream publishes practice materials. For banking and consulting firms, candidate forums (The Student Room, WikiJob) have exercise examples from recent cohort experiences.
For a broader view of the full assessment centre process, including presentation exercises and other components, see our complete guide. For the specific e-tray format used in government recruitment, see the Civil Service Fast Stream guide.
You may also want to review the group exercise guide and STAR interview technique — most assessment centres include both alongside an in-tray exercise.
The skills tested in in-tray exercises — prioritisation, written communication, judgment — are the same skills that make you effective in a competency-based interview. Preparing for both simultaneously is efficient.
Frequently Asked Questions
Ready to Ace Your Assessment Centre?
Practice aptitude tests and sharpen the analytical skills that underpin every in-tray exercise. Our free practice tests cover numerical, verbal, and reasoning — the same skills you need on the day.