User Guide

HTML Variables for PayPal Payments Standard
HTML Variables for Individual Items
A
56 April 2012 Button Manager NVP API
os0 Optional Option selection of the buyer for the first option field, on0. If
the option field is a dropdown menu or a set of radio buttons,
each allowable value should be no more than 64 characters.
If buyers enter this value in a text field, there is a 200-
character limit.
NOTE: The option field on0 must also be defined. For
example, it could be size.
For priced options, include the price and currency symbol in
the text of the option selections, as the following sample
code shows:
<option value="small">small - $10.00</option>
Add a corresponding option_select0 and
option_amount0 variable for each priced option. Priced
options are supported only for Buy Now and Add to Cart
buttons. Only one dropdown menu option selection can have
priced options.
 Optional for Buy Now, Add to Cart, Subscribe,
Automatic Billing, and Installment Plan buttons
 Not used with Donate or Buy Gift Certificate buttons
See
description.
os1 Optional Option selection of the buyer for the second option field,
on1. If the option field is a dropdown menu or a set of radio
buttons, each allowable value should be no more than 64
characters. If buyers enter this value in a text field, there is a
200-character limit.
You can specify a maximum of 7 option selections (6 with
Subscribe buttons) by incrementing the option selection
index (os0 through os6). You can implement up to 5 option
selections as dropdown menus and up to 2 option selections
as test boxes.
NOTE: A corresponding option field (on0 through on6)
must be defined.
 Optional for Buy Now, Add to Cart, Subscribe,
Automatic Billing, and Installment Plan buttons
 Not used with Donate or Buy Gift Certificate buttons
64 or 200
See
description.
Name
Required
or
Optional Description
Character
Length