Study Guide
Table Of Contents
- PayPal Certified Developer Program Study Guide
- Contents
 - List of Tables
 - Online Payment Processing
 - Internet Security and Fraud Prevention
- Why Every Business Should Be Concerned About Internet Fraud
 - Liability for Internet Fraud
 - Internet Fraud: What It Is and How It Happens
 - Who Is at Risk for Online Fraud
 - Reducing Exposure to Fraud
 - What Banks and Card Associations Are Doing to Prevent Online Credit Card Fraud
 - What PayPal Is Doing to Protect Your Business Against Fraud
 - Disclosure and Compliance
 - PayPal Fraud Protection Services
 - Review Questions
 
 - Getting Started With Account Setup
 - API Credentials
 - Name-Value Pair (NVP) API
 - Express Checkout
 - Direct Payment API
 - Transactions
 - Sandbox Testing
 - Answers to Review Questions
 - General Reference Information
 - Glossary
 - Index
 
 
Express Checkout
Express Checkout API Reference Information
6
70 March 2008 PayPal Certified Developer Program Study Guide
TAXAMT Sum of tax for all items in this order.
N OTE: Limitations: Must not exceed $10,000 USD in any 
currency. No currency symbol. Must have two decimal 
places, decimal separator must be a period (.), and the 
optional thousands separator must be a comma (,).
N OTE: TAXAMT is required if a value is specified for 
L_TAXAMTn.
No
CURRENCYCODE A three-character currency code for one of the PayPal-
supported transactional currencies.
Default value: USD
No
L_NAME
n Item name.
These parameters should be ordered sequentially, beginning 
with 0 (for example, 
L_NAME0, L_NAME1, and so forth).
Character length and limitations: 127 single-byte characters.
No
L_NUMBER
n Item number.
These parameters should be ordered sequentially, beginning 
with 0 (for example, 
L_NUMBER0, L_NUMBER1, and so 
forth).
Character length and limitations: 127 single-byte characters.
No
L_QTY
n Item quantity.
These parameters should be ordered sequentially, beginning 
with 0 (for example, 
L_QTY0, L_QTY1, and so forth).
Character length and limitations: any positive integer.
No
L_TAXAMT
n Item sales tax.
These parameters should be ordered sequentially, beginning 
with 0 (for example, L_TAXAMT0, L_TAXAMT1, and so forth).
Limitations: Must not exceed $10,000 USD in any currency. 
No currency symbol. Must have two decimal places, decimal 
separator must be a period (.), and the optional thousands 
separator must be a comma (,).
No
L_AMT
n Cost of item.
These parameters should be ordered sequentially, beginning 
with 0 (for example, L_AMT0, L_AMT1, and so on).
Limitations: Must not exceed $10,000 USD in any currency. 
No currency symbol. Must have two decimal places, decimal 
separator must be a period (.), and the optional thousands 
separator must be a comma (,).
No
L_EBAYITEMNUMBER
n
Auction item number.
Character length: 765 single-byte characters.
No
T
ABLE 6.6 DoExpressCheckoutPayment Request Parameters (Continued)
Parameter Description Required?










