In plain language
It is a safe place to try changes before they touch production data.
Example
A payment workflow is tested against Stripe’s test mode, so no real cards are charged.
Related terms
Automation · API Key · Workflow · Error Handling
Common misconception
Passing in a sandbox does not guarantee production will work; real data, permissions, and volumes often differ.
Implementation guidance
Use separate credentials for test and live systems, label test data clearly, test edge cases, and run a small controlled launch in production.