Thank you for your question today on Sandbox and welcome to the community. Sandbox is the test platform to ensure that your integration works.
No funding sources (PayPal Accounts, Credit Cards, Bank accounts, etc) will ever be charged, and the funds will never be transferred to a live PayPal Account.
When you are ready to receive live payments, all that is needed is to switch your shopping cart/integration to the live end points and use your Live PayPal Credentials.
Once you are pointed to the live servers and your live PayPal Credentials are used, the funds will be sent to your live PayPal Account.
Thank you,
Jennnifer
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