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Business Analyst Technical BA hard

You need to gather requirements for a new API integration. What do you ask?

Asked at RazorpayStripePayUCashfree
Framework

purpose → payload → auth → reliability → volume → errors

Model answer

Six categories: purpose (what triggers the call), payload (request and response shape), auth (keys, OAuth, mTLS), reliability (retries, idempotency, timeouts), volume (RPS, burst), and error handling (error codes, fallback behaviour, alerting).

What great candidates actually do

  • Idempotency keys are the #1 thing junior BAs forget.
  • Ask for sample cURL commands — vendors love giving them.
  • Document rate limits AND what the caller should do when hit.

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Related questions

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Walk me through the last BRD you wrote — how did you structure it?

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Requirements

What's the difference between a BRD, FRD and SRS — and when would you use each?

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Stakeholder

How would you elicit requirements from a senior stakeholder who won't give you time?

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