Create your live Classic API credentials from the PayPal.com site as follows:
You must have a PayPal Business account to make calls to the live PayPal servers. Log in to your Business account on the following page: https://www.paypal.com.
Click the profile (person) icon in the top right and select Profile and Settings from the drop-down menu.
Then navigate to My Selling Tools > API Access and click Update.
Note If you do not see the profile (person) icon in the top right, navigate to the API Access page by clicking My Account > Profile > My Selling Tools > API Access.
1.Click Request API Credentials on the API Access page:
Note: If you’ve already generated a set of API credentials, you’ll have to delete your existing set before you can generate a new set of credentials.
2.Select Request API signature and click Agree and Submit to generate a set of Signature credentials.
Here’s an example showing a set of Signature credentials (for Certificate credentials, see the section below):
3.Since you have the inputs, now go to Admin Dashboard/Gateways Manage/PayPal Adaptive/Edit:
Input your information to PayPal Adaptive edit:
PayPal API AppID: with sandbox environment will only use same one appID: APP-80W284485P519543T
PayPal Email: your email that login your Paypal account.
Enable: Check to enable PayPal Adaptive.
Test mode: Check to enable sandbox environment from your mooSocial.
Login your account to start creating new app.
#Start creating new app by clicking on Create new Application.
Next step, give PayPal information to register your App
#Register your APP
Get down below, press on Submit App button to begin submitting your app.
#Submit your App
Then, your app will have status 'Open' which means it is under approval
#Your app is under approval
You must wait for PayPal til your app is Approved
And done, now you have Live App!