Supported numbers
In sandbox, Rewrite recognizes a small set of magic numbers that force specific outcomes.Default behavior
If you use another valid number in sandbox, the backend follows the default simulation path and treats the send as a simple success.Sandbox OTP
For OTP in sandbox:- creation still happens through
POST /otp - verification can be tested with the fixed code
000000
Operational notes
- These numbers only apply when the project is in sandbox mode.
- Sandbox does not allow
scheduledAt. - Emitted webhooks are still signed normally.