You will need to create an app in the PayPal account to generate a client ID for your account.
- Go to the developer PayPal website and create an account or sign in.
- After Sign In, go to https://developer.paypal.com/developer/applications/ My Apps & Credentials and click “Create App” button to create an application. Fill in the necessary details and select Create App.
- Once the App is created it will have a toggle for sandbox and live and also show the Client ID.