How to Prepare for an In-Tray Exercise and Get…

You open the assessment. There are 18 messages, three competing deadlines and a customer who wants an answer now.

You have 45 minutes.

Your first instinct is to start answering messages. That could be your first mistake.

An in-tray exercise is not simply a test of how quickly you clear an inbox. It tests whether you can make sensible decisions when several people want different things at once.

Being busy is not the same as being effective. This assessment exposes the difference.

Here is how to prepare for an in-tray exercise in a job assessment, even if you have never worked in an office. You will learn how to identify priorities, explain decisions and produce answers that show you can be trusted with responsibility.

What is an in-tray exercise?

An in-tray exercise puts you in a simulated job and asks you to handle a collection of work-related information. You might receive emails, calendar invitations, complaints, reports, policies or messages from colleagues.

You usually receive a role brief explaining your responsibilities, alongside instructions about what to submit.

Depending on the assessment, you may need to:

Rank tasks in priority order.
Choose responses from a fixed list.
Draft emails or recommendations.
Create an action plan or amend a schedule.
Explain your decisions in a follow-up discussion.

A digital version is often called an e-tray exercise. Some assessments let you move freely between items. Others restrict navigation or introduce new information as you work.

Read the actual instructions. Do not assume an online practice exercise matches your employer’s format.

For broader context, Prospects’ assessment-centre guidance explains how employers use exercises to assess candidates against job-related competencies. Your invitation and candidate guidance remain the authority for your specific assessment.

What assessors need to see

The precise scoring criteria vary. However, these exercises commonly provide evidence of prioritisation, judgement, information handling and communication.

Your answers need to make that evidence visible.

Prioritisation with reasons

“I would do this first” is incomplete. Explain the deadline, likely consequence and reason it takes precedence.

Decisions that respect your authority

Taking initiative does not mean inventing permission. Recognise what you can decide, what you can delegate and what needs approval.

Accurate use of information

A convincing answer based on the wrong policy is still wrong. Check names, figures, dates and relevant rules before committing to action.

Clear ownership and follow-through

“Someone should contact the customer” leaves the work floating. A stronger response identifies who will act, by when and how completion will be checked.

The goal is not to sound senior. It is to make your reasoning easy to assess.

Prepare before the assessment, not during it

1. Establish the format

Check the invitation and any candidate pack for:

The time limit and expected outputs.
Whether responses are written, selected or discussed.
Whether you can revisit earlier items.
Whether notes, calculators or other tools are permitted.
Any technical requirements or practice materials.

If essential information is missing, ask the recruitment contact. Asking about the format is preparation, not asking for the answers.

If you need reasonable adjustments, raise this early. Discuss the access requirement and available arrangements rather than assuming the platform will accommodate it automatically.

2. Translate the job description into decisions

Highlight the responsibilities and behaviours the employer emphasises. Then ask what they would look like under pressure.

For an administrator, that might mean resolving a diary conflict without exposing confidential information. For a customer service role, it might mean checking a complaint before promising a refund.

Create three links:

Responsibility: What must this role deliver?
Risk: What could prevent that outcome?
Evidence: What action would demonstrate sound judgement?

This is more useful than memorising generic leadership phrases. You are preparing to act within a particular role, not auditioning to run the company.

3. Learn a practical decision sequence

Practise asking five questions about each item:

What needs to happen?
What is the real deadline?
What happens if nothing is done?
What information or approval is needed?
Who should act next?

The word “urgent” is not an answer to question two. Look for a specific deadline, an operational dependency or a credible risk.

Likewise, a message from a senior person is not automatically more important than a time-sensitive customer or safety issue.

4. Practise concise responses

Use a repeatable structure:

Decision: What you propose to do.
Reason: The evidence supporting it.
Owner: Who takes the next action.
Timing: When action or an update is due.
Check: Any verification, approval or follow-up needed.

Do not force every answer into five labelled lines. Use the structure to check that your response is complete.

“The customer is unhappy” describes a problem. “Check the delivery record, contact the customer by 11.00 and seek approval if compensation exceeds my limit” describes controlled action.

Use the assessment time deliberately

For a 45-minute exercise that allows free navigation, a useful starting allocation is:

Five minutes to read the role brief and submission requirements.
Eight minutes to scan the items and identify priorities.
Twenty-six minutes to complete the required responses.
Six minutes to check and submit.

This is a practice framework, not a rule. Adapt it to the number of items, the output required and any timed sections. For a sequential assessment, use shorter read-decide-check cycles instead.

Read the role brief before solving problems

Establish your responsibilities, reporting line, available colleagues and decision limits.

Pay particular attention to policies on spending, confidentiality, customer commitments and escalation.

A clever solution that breaks an explicit rule is not a clever solution.

Scan before you commit

Where navigation allows, get an overview before drafting detailed answers. Record each item’s deadline, consequence and connection to other items.

That connection matters. A staffing update may change your response to a customer request. A policy notice may remove an option that initially looked sensible.

Use a compact task list:

Item and required outcome.
Deadline and consequence of delay.
Next action and owner.
Missing information or dependency.

Keep notes short. You are building a decision aid, not producing a second version of the inbox.

Prioritise consequences, not noise

Consider immediate harm, hard deadlines, customer impact, business disruption and dependencies.

A low-effort confirmation may deserve early attention if it allows someone else to complete time-critical work. A long report may be important without requiring your first ten minutes.

Separate the final deadline from the latest sensible start time. A task due tomorrow may need action now if it requires information from someone who leaves at lunchtime.

There is no universal ranking that fits every exercise. Use the facts provided and explain the trade-off.

Distinguish acknowledgement from resolution

Some problems need a quick acknowledgement followed by investigation. Others require immediate protective action.

Do not confuse sending an email with solving the problem.

If a delivery deadline is at risk, acknowledging the customer is useful. Checking what can actually be delivered is essential. Promising an unverified delivery time makes the situation worse.

A worked in-tray example

You are acting as an office coordinator. It is 09.00. You can ask colleagues for support, but additional spending needs your manager’s approval.

Four messages arrive:

A colleague reports exposed wiring beside a busy reception walkway.
A courier needs a parcel reference by 09.20 or today’s collection may be missed.
A supplier requests payment of an invoice by noon. The amount differs from the purchase order.
Your manager wants ideas for next month’s staff newsletter by 16.00.

Here is how to reason through them.

First: address the reported safety risk

Follow the stated emergency or facilities procedure. Alert the designated responsible person and arrange safe restriction of access if this is within your role and can be done safely.

Do not attempt electrical repairs yourself.

Your rationale is the potential for immediate harm. Your answer should identify the initial protective action and the escalation route, rather than merely placing “wiring” at the top of a list.

Next: protect the collection deadline

Check the parcel reference against the dispatch record and send it to the courier before 09.20.

If a suitable colleague can do this while you address the safety issue, request their help and ask for confirmation before the deadline.

That is delegation with control. Forwarding the email without a clear request is not.

Then: investigate the invoice discrepancy

Compare the invoice with the purchase order and any relevant delivery record. Raise the mismatch with the appropriate finance contact or supplier, following the stated process.

Do not approve an unexplained amount just because the message says payment is urgent.

If investigation threatens the noon deadline, flag the risk to the authorised person and request a decision. Do not invent authority to approve payment or change supplier terms.

Finally: schedule the newsletter work

Acknowledge the request if appropriate and reserve time before 16.00.

The manager’s seniority does not make this request more pressing than a safety risk or a near-term collection deadline.

The important point is not simply the order. It is the combination of risk assessment, parallel action, verification and follow-through. Different facts could justify a different sequence.

Write answers that reveal your judgement

Compare these responses to a customer complaint.

Weak: “I would apologise and resolve the issue as soon as possible.”

Stronger: “I would check the order and delivery records, acknowledge the complaint and give the customer an update by 11.00. If the proposed remedy exceeds my authority, I would refer it to the team leader with the relevant facts and my recommendation.”

The stronger answer specifies an investigation, a communication deadline and an approval boundary.

It also avoids promising a resolution before the facts are known.

When information is missing, state the gap and your next step. Where a decision cannot wait, explain any necessary assumption and how you would verify it. Never quietly turn a guess into a fact.

For fixed-choice assessments, select the option best supported by the brief. You may not have space to explain your reasoning, so careful reading matters even more.

Mistakes that waste good candidates

Answering in inbox order

Message order is not a priority system. Where the format allows, compare demands before committing your time.

Escalating everything

Your manager is not a substitute for your judgement. Escalate matters outside your authority, but include the facts, risk and proposed next step.

Delegating without checking suitability

A colleague needs the relevant capability, availability and permission. State the outcome and deadline, then confirm completion where necessary.

Polishing one answer while leaving others untouched

Set a working time budget. If partial responses are permitted, concise, reasoned answers across the required tasks may provide more useful evidence than one immaculate email and several blanks.

Ignoring the submission instructions

If the task asks for a ranked list and reasons, provide both. Do not replace the requested output with a long essay about your working style.

Practise once, review honestly, repeat

Do at least one timed practice using the employer’s materials where available. Otherwise, choose an exercise with a comparable role, format and time limit.

Afterwards, review your decisions against the brief and any answer guidance. Do not assess yourself only on whether you finished.

Ask:

Did I identify the most consequential risks?
Did I notice linked messages and conflicting information?
Did I respect the role’s decision limits?
Did I specify actions, owners and realistic timings?
Did I leave enough time to check my submission?

Then repeat the weakest part. If scanning was slow, practise extracting deadlines. If answers were vague, rewrite them using the decision structure.

No office experience? Use examples from study, volunteering, caring or part-time work to practise competing priorities. The setting changes. The need to make a justified decision does not.

Your final assessment checklist

Before submitting, check names, dates, figures, priorities and required outputs. Remove unsupported promises. Confirm that important actions have an owner and a deadline.

You cannot control every message the exercise contains.

You can control your method.

Read accurately. Prioritise consequences. Act within your authority. Explain the next step.

That is how you turn a crowded inbox into credible evidence that you are ready to work.

Next Steps

Want to learn more? Check out these articles:

How to Talk About a Missed Deadline and Still Get Hired

How to Answer When You Disagreed With Your Manager

How to Explain Self-Employment on Your CV and at Interview

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