The Sandbox is a safe and secure testing ground where you can integrate FlexCharge APIs and run test transactions without the risk of affecting your live systems or data.
If you don't already have a Sandbox account with the required credentials to start using our APIs, you can request one at [email protected]
Go to the Developers' section to retrieve all the required keys and ids for your integration.
Watch your transactions appear in the Orders section.
And check the activity logs of your tests.