Challenges/ch-01-customer-profile-normalization-crm-to-internal-api
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Customer Profile Normalization — CRM to Internal API

A consumer calls your system's REST endpoint with a customer profile sourced from NexaCRM — a deeply nested JSON structure that your internal Customer Management API cannot consume directly. In this challenge you will flatten the nested payload into a single-level object the downstream API accepts. You will practice DataWeave's multi-value selector and range selector, two tools that appear constantly when working with arrays of typed objects in real CRM integrations.

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%dw 2.0
output application/json
---
payload
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The fastest way
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01.
Production payloads
Real CSV/JSON/XML you'll meet on day one — null fields, mixed casing, partial records.
02.
Design problems
What practitioners actually solve — null-safety, idempotency, retries, batch boundaries.
03.
Edge cases that break
Empty arrays, type coercion, deeply nested transforms, locale-specific dates.
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06.
Production-style payloads
Real CSV/JSON/XML — null fields, mixed casing, partial records.