Sandbox testing
Use the sandbox environment to validate request construction, user journeys, callbacks, and operational handling before going live.
# Sandbox testing
Use the sandbox environment to validate request construction, user journeys, callbacks, and operational handling before going live.
## Use the correct environment
Sandbox requests use https://sandbox.moolre.com. SMS and WhatsApp each use a separate service-specific X-API-VASKEY, so enter the key created for the service you are calling.
## Test real integration paths
Cover success, validation failure, duplicate reference, callback delivery, and uncertain network outcomes. Record the request reference in your test notes so every case can be investigated.