Developer's Guide
Table Of Contents
- Content
- Preface
- Introducing the Gateway Checkout Solutions
- Secure Token
- Configuring Hosted Checkout Pages
- Payflow SDK
- Sending a Simple Transaction to the Server
- Submitting Credit Card Transactions
- Obtaining an Internet Merchant Account
- About Credit Card Processing
- Credit Card Features
- Planning Your Gateway Integration
- Core Credit Card Parameters
- Submitting Account Verifications
- Submitting Authorization/Delayed Capture Transactions
- Submitting Balance Inquiry Transactions
- Submitting Card Present (SWIPE) Transactions
- Submitting Credit (Refund) Transactions
- Submitting Inquiry Transactions
- When To Use an Inquiry Transaction
- Required Parameters When Using the PNREF
- Inquiry Transaction Parameter String Using the PNREF
- Required Parameters When Using the CUSTREF
- Inquiry Transaction Parameter String Using the CUSTREF
- Required Parameters When Using the Secure Token
- Inquiry Parameter String Using the Secure Token
- Submitting Partial Authorizations
- Submitting Purchasing Card Transactions
- Submitting Reference Transactions (Tokenization)
- Submitting Sale Transactions
- Submitting Soft Merchant Information
- Submitting Voice Authorization Transactions
- Submitting Void Transactions
- Using Address Verification Service
- Using Card Security Code
- Information for the PayPal Acquirer
- Testing Transactions
- Transaction Responses
- Processors Requiring Additional Transaction Parameters
- American Express Additional Credit Card Parameters
- Elavon Additional Credit Card Parameters
- First Data Merchant Services Nashville, Additional Credit Card Parameters
- First Data Merchant Services North, Additional Credit Card Parameters
- Heartland, Additional Credit Card Parameters
- Litle Additional Credit Card Parameters
- Cielo Payments, Additional Credit Card Parameters
- Paymentech Salem (New Hampshire) Additional Credit Card Parameters for American Express
- PayPal Credit Card Transaction Request Parameters
- SecureNet Additional Credit Card Parameters for American Express
- Vantiv Additional Credit Card Parameters
- WorldPay Additional Credit Card Parameters
- TeleCheck Electronic Check Processing
- Payflow Header Parameters
- Submitting Purchasing Card Level 2 and 3 Transactions
- About Purchasing Cards
- About Program Levels
- About American Express Purchasing Card Transactions
- American Express Purchasing Card Transaction Processing
- Elavon (Formerly Nova) Purchasing Card Transaction Processing
- First Data Merchant Services (FDMS) Nashville Purchasing Card Transaction Processing
- First Data Merchant Services (FDMS) North Purchasing Card Transaction Processing
- First Data Merchant Services South (FDMS) Purchasing Card Transaction Processing
- Global Payments - Central Purchasing Card Transaction Processing
- Global Payments - East Purchasing Card Transaction Processing
- Heartland Purchasing Card Transaction Processing
- Litle Purchasing Card Transaction Processing
- Cielo Payments Purchasing Card Transaction Processing
- Paymentech Salem (New Hampshire) Purchasing Card Transaction Processing
- Paymentech Tampa Level 2 Purchasing Card Transaction Processing
- SecureNet Purchasing Card Transaction Processing
- TSYS Acquiring Solutions Purchasing Card Transaction Processing
- Vantiv Purchasing Card Transaction Processing
- WorldPay Purchasing Cards Transaction Processing
- VERBOSITY: Processor-Specific Transaction Results
- Country Codes
- Codes Used by FDMS South Only
- Additional Processor Information
- Payflow Link Migration
- Payflow Gateway MagTek Parameters
- Payflow Gateway FAQs
Gateway Developer Guide and Reference 07 January 2014 155
C
Payflow Header Parameters
This section includes information on the Payflow header parameters. These header parameters
can be used to bypass Payflow to send a request message directly to PayPal. They can also be
used to post transactions to the Payflow servers directly without installing an SDK. This
section includes:
“Sending Requests Directly to PayPal Bypassing Payflow” on page 155
“Posting Transactions Directly Without the Payflow SDK” on page 156
Sending Requests Directly to PayPal Bypassing Payflow
Payflow will ignore the request parameters you pass and will forward them to PayPal when
you declare PAYPAL-NVP=Y in the request header. Declaring PAYPAL-NVP=Y in the request
header is required when passing negative discount amounts to PayPal through Payflow.
Please note that passing PAYPAL-NVP=Y in the request header changes the format of the
response message you receive from Payflow. For example, if PAYPAL-NVP=Y is NOT
declared in the header, the Payflow response message is formatted as follows:
RESULT=0&RESPMSG=Approved&TOKEN=EC-
868676987J8393917&CORRELATIONID=5f817d830101
If the request header PAYPAL-NVP=Y is declared, the response returned from Payflow
includes bracketed numbers next to the names of the response parameters. These bracketed
numbers are length tags indicating the length of the values returned. The following is a
response message that contains length tags:
RESULT=0&RESPMSG=Approved&TOKEN[20]=EC-
97J718043X120051H&TIMESTAMP[20]=2012-10-
11T15:19:37Z&CORRELATIONID[13]=274f8d4493dbe&ACK[7]=Success&VERSION[
4]=92.0&BUILD[7]=3893058
You can also use length tags in the Payflow request message to pass the special characters of
"&" and "=" in the values sent. See “Using Special Characters In Values” on page 53 for more
information.
Express Checkout for Payflow
For information on using the PayPal Express Checkout API with Payflow, see the Express
Checkout for Payflow integration guide.