Short answer
UUIDs are useful when you need unique-looking IDs for testing, but they should still be labeled clearly so test data is not mistaken for production data.
UUID Test Data Workflows
UUIDs are useful when you need unique-looking IDs for testing, but they should still be labeled clearly so test data is not mistaken for production data.
Why it matters
- Use stable IDs in repeatable fixtures
- Label generated records as test data
- Avoid using UUIDs as proof of authorization
What to know
Generated IDs are handy for local testing, demos, sample payloads, and spreadsheet imports.
Stable fixture IDs make debugging easier than regenerating every value on each run.
Teams should avoid mixing generated test identifiers into real customer records.