Sandbox data is limited to what is provided in the Test Data tables and is not integrated to the Visa Network. Sandbox does not generate real transactions with real data, therefore, you will not be able to test real data in sandbox.
When you are approved for Project Promotion, you will be able to use real data. If you would like to move your application from sandbox testing into production, then involved in this process is getting additional information from you in order to better serve you and understand the next steps for moving the application through onboarding.
Please see the steps in the “Getting Started with Visa Developer” link below to learn more about the Promote Project process.
Docs > Getting Started with Visa Developer > Promote Project
If you have additional questions, please feel free to reach out and someone will be happy to provide you with help!
That's a good question! Our product team reviews the Project Promotion request and there's no set timeline on how long their review takes. This is because the product team takes into account that it's really on a case-by-case basis but after your Project Promotion submission I'm sure someone will reach out to you soon. Hope that helps!