RB User Guide > Connect > Preferences > Contact – Account Activity
Setting up a PayPal business account
Before your clients can pay invoices online in RB9, you must set up a business account with one of the accepted online payment processing services and enter your credentials in RB9. Follow these instructions to set up a PayPal business account and enter your credentials in RB9. 
Continued from Contact – Account Activity preferences.
NOTE: PayPal site instructions & wording might be different
These instructions might be slightly different from the actual PayPal site, however, the concept is the same. You must set up a business account on PayPal and get API credentials which you then enter in RB9 before you can accept payments online.
 - Sign up for a PayPal Payment Pro business account on PayPal.com.
 
 - Log in after you sign up.
 
 - Click 
 > Account Settings. 
 - Under Account Settings, click Account access, then click Update in API access section.
 
 - On the API Access page in the NVP/SOAP API Integration (Classic) section, click Manage API Credentials.
 
 - On the Request API Credentials – PayPal page, click the Request an API signature button, then click Agree and Submit to generate the API signature. 
 
 - On the View or Remove API signature page, click each Show hyperlink to reveal each value that you will then copy and paste into your Account Activity Connect Preferences.
 
 - In RB9, go to Connect Preferences > Contact – Account Activity and click Edit.
 
 - Add your API credentials to the Online Payment pane:
  
   - 
    
Online Payment Method
    Select PayPal in the drop-down. 
   - 
    
*User Name
   Required. Copy and paste your company’s API username from your PayPal account. 
   - 
    
*Password
   Required. Copy and paste the API password from your PayPal account. 
   - 
    
*Signature
   Required. Copy and paste the digital ID Signature from your PayPal account. 
  
  
	- Click Save.
 
TIP: Use a different service if your clients do not have PayPal accounts
	If your clients resist using your online payment option because they do not have/do not want a PayPal account, you can use one of the RB9 accepted payment gateways instead:
	
	 
	  - Authorize.net – Visa’s payment gateway accepts Visa, MasterCard, American Express, Discover, JCB, and Diners Club.
 
    - First Data (Payeezy) – Payment gateway accepts VISA, Mastercard, American Express, Discover, JCB, Diners Club, Paypal, e-Check, and gift cards.
 
    - Square – Payment gateway that accepts Visa, MasterCard, American Express, Discover, JCB, and UnionPay.
 
    - Stripe – Payment gateway that accepts Visa, MasterCard, Maestro, American Express, Discover, Diners Club, JCB, Union Pay, Google Pay, and Apple Pay.	
 
	 
Reference
Step-by-step instructions