You can define the Maximum Permissible Sandbox Mobile Numbers during setup. By default, only registered and whitelisted numbers are allowed. Resellers may whitelist additional numbers manually or allow users to whitelist via OTP verification.
Category: Sandbox Settings
How do I set a default Sender ID for Sandbox testing?
In the SMS Sandbox Configuration, you can assign a Default Sender ID. 👉 Important for Indian users: Ensure the sender name matches approved DLT templates, otherwise messages may fail.
Can I customize the default credits for new Sandbox users?
Yes. While configuring Sandbox, you can set the Default Credit/Wallet Amount. This balance will be automatically assigned to new sign-ups, allowing them to test the system instantly.
How do I enable Sandbox for my downline users?
To activate Sandbox for your downline users:
What is the SMS Sandbox in SMPP Center?
The SMS Sandbox is a test environment provided by SMPP Center that allows new users to try SMS services without immediate billing or DLT setup. It helps resellers onboard clients smoothly by offering demo credits, default sender IDs, and controlled whitelisted numbers for trial SMS sending.