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Strategic Business Leader · Enabling success: performance excellence

Critical Success Factors and Key Performance Indicators for ACCA SBL

Updated 11 October 2026 · Fact-checked

A critical success factor (CSF) is something the organisation must get right to achieve its strategic objectives. A key performance indicator (KPI) is a measure of how well it is doing on that factor. To answer: state the objective, identify the CSFs, then choose measurable KPIs with targets for each.

Understand Critical Success Factors and Key Performance Indicators

Every strategy has objectives. Objectives say where the organisation wants to be. But a board cannot manage an objective directly. It needs to know what has to go right, and how to tell whether it is going right.

A critical success factor (CSF) is an activity, resource or condition that the organisation must perform well to achieve its objectives. If it fails at a CSF, the strategy fails. CSFs are few. If you list ten, none of them is critical. CSFs link to the organisation's strengths, its customers' needs and its competitive position.

A key performance indicator (KPI) is a measure of performance against a CSF. It is quantified, tracked over time and compared with a target. A CSF is the 'what'. A KPI is the 'how we measure it'. For example, a budget airline's objective is profitable growth. A CSF is low operating cost per seat. A KPI is cost per available seat kilometre against target.

Good KPIs are tied to strategy, not chosen because the data is easy to get. They should be clear, measurable, controllable by the manager judged on them, timely and balanced across financial and non-financial areas. Too many KPIs hide what matters. Poor KPIs can also drive the wrong behaviour, such as staff chasing the measure rather than the goal.

In SBL you must apply this to the case. The examiner wants CSFs and KPIs that fit the organisation's sector, strategy and stakeholders, not a generic list.

Key rules to remember

CSF to KPI chain
Strategic objective → CSF → KPI → target
Every KPI must trace back to a CSF and an objective. If it does not, question why you are measuring it.
SMART test for objectives and targets
Specific, Measurable, Achievable, Relevant, Time-bound
Use it to check that a KPI target is usable. Some texts vary the wording of A and R, so state your own meaning.
Balanced coverage check
Financial + customer + internal process + learning and growth
The Balanced Scorecard perspectives. Use them to check your KPIs are not all financial.

How to solve Critical Success Factors and Key Performance Indicators questions

Use this method for any requirement that asks you to identify CSFs, suggest KPIs or assess a set of measures.

  1. 1Read the requirement and note the verb: identify, recommend, evaluate or explain. This decides how much discussion you need.
  2. 2State the strategic objective from the scenario in one line. CSFs only make sense against an objective.
  3. 3Identify two to four CSFs. Ask: what must this organisation do well, given its customers, competitors and strategy?
  4. 4For each CSF, propose one or two KPIs. Make each measurable, with a unit and a comparison such as a target, trend or benchmark.
  5. 5Check balance. Add non-financial KPIs, such as customer satisfaction or defect rate, if all your measures are financial.
  6. 6Apply to the scenario. Use figures, names and facts from the case, and explain why each KPI suits this organisation.
  7. 7Note limits and risks, such as manipulation, short-termism or data quality, and suggest how to manage them.
  8. 8Close with a short conclusion or recommendation, which earns professional skills marks.

Quickest way: Objective, CSF, KPI table in your head

When to use it: Use it when time is short or the question is worth only a few marks.

  1. Write the objective in five words.
  2. List three CSFs, each in a short phrase from the scenario.
  3. Give one KPI per CSF with a unit, for example 'on-time delivery %'.
  4. Add one sentence per KPI saying why it matters here.
  5. Add one line on a risk, such as a KPI that could be gamed.

Common mistakes in Critical Success Factors and Key Performance Indicators

  • Treating CSFs and KPIs as the same thing.

    Both appear in the same lists and sound similar.

    Fix: Say 'CSF is what must go right; KPI is how I measure it'. Write the KPI as a number with a unit.

  • Listing generic KPIs such as profit and revenue for every organisation.

    They are easy to remember and always seem safe.

    Fix: Take the KPI from the scenario's strategy. A charity, a retailer and a hospital need different measures.

  • Naming too many CSFs.

    Students try to cover every possible point.

    Fix: Limit yourself to two to four. Explain each properly and link to the objective.

  • Giving only financial KPIs.

    Financial measures are the most familiar.

    Fix: Check against the four scorecard perspectives and include customer, process and people measures where relevant.

  • Suggesting KPIs with no target or comparison.

    Students stop at the name of the measure.

    Fix: Say what the KPI is compared with: a target, last year, a competitor or an industry benchmark.

  • Ignoring the behavioural effects of KPIs.

    Students focus on what to measure, not what happens once it is measured.

    Fix: Add a sentence on risks such as short-termism or gaming, and suggest a balancing measure.

Worked examples

Example 1

A regional airline's objective is to grow profit by increasing market share on short-haul routes against low-cost rivals. The board wants to monitor progress. Identify two CSFs and suggest a KPI for each. (6 marks)

Show the solution
  1. Objective: profitable growth in market share on short-haul routes.
  2. CSF 1: Low operating cost per seat. Customers on short-haul routes are price sensitive and rivals compete on cost, so the airline must match their cost base to price competitively and still earn profit.
  3. KPI 1: Cost per available seat kilometre, compared with target and with the main low-cost rivals. A rise signals lost cost control.
  4. CSF 2: Reliable, punctual service. Business and leisure travellers choose airlines that keep to timetable, and delays cost money and reputation.
  5. KPI 2: Percentage of flights departing within 15 minutes of schedule, tracked monthly against target.
  6. Balance: add a market share KPI, such as share of seats on each key route, to link directly to the objective.
  7. Risk: pushing punctuality too hard may encourage cutting safety checks, so safety measures must sit alongside it.

Answer: Two CSFs are low operating cost per seat and reliable punctual service. Suitable KPIs are cost per available seat kilometre against target and rivals, and the percentage of flights departing on time. Route market share shows progress towards the objective. Safety measures should balance the punctuality KPI.

Example 2

A hospital trust's board proposes to judge managers only on cost per patient treated. Evaluate this proposal and recommend improvements. (8 marks)

Show the solution
  1. State the purpose: a hospital's objective is quality care within a budget. Cost per patient reflects only the budget side.
  2. Strength: the measure is clear, quantifiable and easy to compare across departments and over time. It supports financial control.
  3. Weakness 1: it ignores outcomes. Managers can cut cost by shortening treatment or using cheaper staff, which may harm patients.
  4. Weakness 2: it may not be controllable. Case mix and patient age differ by department, so a complex ward would look inefficient unfairly.
  5. Weakness 3: it encourages short-termism, such as cutting training or maintenance to improve the figure now.
  6. Recommendation: identify CSFs such as clinical quality, timely access and efficient use of resources.
  7. Add KPIs: readmission rate within 30 days, waiting time from referral to treatment, patient satisfaction score and bed occupancy.
  8. Adjust cost per patient for case mix, and set targets with clinicians so the measures are accepted.
  9. Conclusion: use a balanced set, with cost as one measure among several, so managers are not rewarded for harming quality.

Answer: Cost per patient alone is clear but too narrow. It ignores quality, may be uncontrollable and invites short-termism. The trust should link KPIs to CSFs of clinical quality, access and efficiency, using readmission rate, waiting time, patient satisfaction and case-mix adjusted cost.

Exam tips

  • Always start from the objective in the scenario. Markers reward KPIs that clearly link to it.
  • Give each KPI a unit and a comparison, such as 'percentage against target'. A bare name earns little.
  • Tailor to the sector. For a not-for-profit or public body, think outcomes and value for money, not profit.
  • If asked to evaluate KPIs, cover both strengths and weaknesses, then give a recommendation. That also earns professional skills marks.
  • Use the case facts: names, figures and strategy. Generic lists score poorly in SBL.

Practice questions from Enabling success: performance excellence

Critical Success Factors and Key Performance Indicators in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Critical Success Factors and Key Performance Indicators: frequently asked questions

What is the difference between a CSF and a KPI?

A CSF is something the organisation must do well to achieve its objectives. A KPI is a measure of how well it is doing that. One CSF can have several KPIs.

How many KPIs should I suggest in the exam?

Match the marks. Usually two to four well-explained KPIs linked to CSFs score better than a long list. Give the unit, a comparison and a reason for each.

Do KPIs have to be financial?

No. A balanced set includes financial and non-financial measures such as customer satisfaction, defect rates and staff turnover. Non-financial measures often give earlier warning of problems.

How do I choose KPIs that fit a strategy?

Start with the strategic objective, identify what must go right, then pick measures of those things. Check that each KPI is measurable, controllable by the person judged on it and timely enough to act on.