If you face issues with enabling or configuring Sandbox:
Category: Sandbox Settings
Is Sandbox mandatory for all new users?
No. It is optional. Resellers can decide whether to enable Sandbox for their new downline sign-ups.
Can Sandbox testing be used for international SMS?
Yes, as long as the correct country code is used and the reseller has enabled international routing. However, Sandbox mode is primarily designed for demo purposes and not for full-scale international campaigns.
How does the Sandbox benefit resellers in SMPP Center?
The Sandbox helps resellers:
Why do new users get “No Valid Phone Numbers Found” error in Sandbox?
This error usually occurs when: 👉 See detailed guide here: Why am I getting the error No Valid Phone Numbers Found on SMPP Center?
What happens when Sandbox is deactivated?
When you disable the Sandbox feature for a user:
Is the registered mobile number automatically whitelisted in Sandbox?
Yes. By default, the user’s registered mobile number is whitelisted automatically when Sandbox is enabled.
What happens if my reseller account balance is low?
If your main reseller account lacks sufficient balance, new Sandbox users will not receive their default credits. This can disrupt their trial experience. Always maintain enough wallet balance to ensure smooth onboarding.
Where do I manage message templates for Sandbox?
How can Sandbox users whitelist additional mobile numbers?
There are two ways: