Log in to your existing Paypal Business account or create a new one.
Go to the Dashboard.
Click Create App.

step_1

Type UBO-VISP in the App name field. (An email will be prepopulated in the Sandbox developer account.)

step_2

Click Create App.

step_3_sandbox_account

You will then be redirected to this page. This is your Sandbox Account in PayPal.

step_3_live_show

Scroll down until you see the Show link. Then click it.

step_3_live

You will now see your Client ID and Secret.
Copy the Client ID and Secret from your PayPal page to the corresponding fields in UBO > ISP Configuration > Billing Options > Merchant Account.

blocked