Paypal Merchant Account Parameters

Open the Site Admin->Site Details->Payment Integration Details, and enable Paypal payment provider. Then choose Paypal from the drop down and enter the parameters as explained below.

Login to your paypal merchant account and collect the details as mentioned below.

Step 1:
Go to My Profile,->My Business Info, and copy the value of Merchant account id. This value you need to set in Business Id  input field

Step 2:
Go to  My Profile,->My selling tools->

Step 2.1
Click on Website preference. On the next screen, Turn on Auto return and specify the return url as
https://yourmicrosite.edubrite.com/oltpublish/site/pp.do?dispatch=success

Then Enable the Payment Data Transfer, and copy the Identity Token, this is the value you need to set in PDT Id field

Step 2.2
Click on API access, and then choose Option 2 and click on View APISignature

From the next screen copy the api username, api password and api signature and set them in API Username, API Password and API Signature parameters respectively.

Step 2.3
Click on Instant payment notification, and enable IPN option

Step 3
Enter the following value in Paypal API Url
https://api-3t.paypal.com/nvp

Summary of all parameters

PAYPAL_BUSINESS=xxxxxxx (Step1)
PAYPAL_PDTID=xxxxxxx (Step 2.1)
PAYPAL_APIUSERNAME=xxxxxxx (Step 2.2)
PAYPAL_APIPASS=xxxxxxx (Step 2.2)
PAYPAL_APISIGNATURE=xxxxxxx (Step 2.2)
PAYPAL_BUTTONHOST=www.paypal.com (Step 3)  (not needed only for paypal direct pay)
PAYPAL_URL=https://www.paypal.com/cgi-bin/webscr (Step 3) (not needed only for paypal direct pay)
PAYPAL_APIURL=https://api-3t.paypal.com/nvp (Step 3)

For testing in Paypal Sandbox

PAYPAL_BUTTONHOST=www.sandbox.paypal.com (Step 3)

PAYPAL_URL=https://www.sandbox.paypal.com/cgi-bin/webscr (Step 3)
PAYPAL_APIURL=https://api-3t.sandbox.paypal.com/nvp (Step 3)