If you not got email within 2436 business hours, firstly check your spam box, and if no any email from the support there - back to the forum and read answer here. 2. . 2. Within your sandbox, you can create users and roles , run transactions using test credit card numbers , and explore the full functionality of the Braintree gateway by using our sandbox testing values in the sandbox Control Panel or. . Select the plugin archive (4) and click the Open button (5). Get started with Braintree- Signup for a sandbox account- View the docs- Server and iOS app integrationBraintree httpswww. . .