Follow the article to find your Braintree account details that are required for us to enable your users to pay through the app.
Log into either the Braintree Control Panel
Click on the gear icon in the top right corner
Click API from the drop-down menu.
Scroll to the API Keys section. If no API keys appear, click the Generate New API Key button.
Click on View.
Merchant ID:
Copy the Merchant ID to insert it to Add merchant account details form.
Public Key:
Copy the Public Key to insert it to Add merchant account details form.
Private Key:
Copy the Private Key to insert it to Add merchant account details form.
