Rize provides a Sandbox environment that enables developers to gain experience exercising the Rize API by using actual http requests. The methods within the Sandbox category allow for the insertion (or removal) of records that (in production) would be the result of interactions with third-party systems. The Rize Sandbox has an endpoint available to generate mock Transactions. This simulates a Transaction in the Custodial Account occurring outside of your application (an ATM withdrawal, a fee, etc…) that will affect the balance of one or more of your Customer's Synthetic Accounts.