Architecture and trigger
Identify which Zoho event starts the request and what data the app must receive. Agree on the source of truth and an operation ID to avoid contradictory changes.
Response contract
Define required fields, HTTP statuses and the app's response. A received response doesn't always mean the business operation completed: verify the target record.
Test missing data, invalid permissions, validation errors, rate limits and temporary outages with controlled data. Never publish private endpoints, real logs or credentials.
Recommended practices
Authentication, payload validation, signatures where applicable, idempotency and retries are controls to scope explicitly.
Define who maintains each side and how failures are reviewed without logging sensitive information.
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