2013

Recurring Payments and Reference Transactions API Operations
DoReferenceTransaction API Operation
12
176 February 01, 2013 Name-Value Pair API Developer Guide
Payment Details Item Fields
NOTIFYURL (Optional) Your URL for receiving Instant Payment Notification (IPN) about this
transaction. If you do not specify this value in the request, the notification URL from
your Merchant Profile is used, if one exists.
IMPORTANT: The notify URL applies only to DoExpressCheckoutPayment.
This value is ignored when set in SetExpressCheckout or
GetExpressCheckoutDetails.
Character length and limitations: 2,048 single-byte alphanumeric characters
RECURRING ns:RecurringFlagType
(Optional) Flag to indicate a recurring transaction. It is one of the following values:
 Any value other than Y – This is not a recurring transaction (default).
 Y – This is a recurring transaction.
NOTE: To pass Y in this field, you must have established a billing agreement with the
buyer specifying the amount, frequency, and duration of the recurring
payment.
Field Description
L_ITEMCATEGORY
n Indicates whether the item is digital or physical. For digital goods, this field is
required and you must set it to Digital to get the best rates. These parameters must
be ordered sequentially beginning with 0 (for example L_ITEMCATEGORY0,
L_ITEMCATEGORY1). It is one of the following values:
 Digital
 Physical
This field is introduced in version 69.0.
L_NAME
n Item name. This field is required when you pass a value for
L_PAYMENTREQUEST_
n_ITEMCATEGORYm. These parameters must be ordered
sequentially beginning with 0 (for example L_NAME0, L_NAME1).
Character length and limitations: 127 single-byte characters
L_DESC
n (Optional) Item description.
This field is available since version 53.0.
Character length and limitations: 127 single-byte characters
L_AMT
n Cost of item. This field is required when you pass a value for
L_PAYMENTREQUEST_
n_ITEMCATEGORYm. These parameters must be ordered
sequentially beginning with 0 (for example L_AMT0, L_AMT1).
NOTE: If you specify a value for L_AMTn, you must specify a value for ITEMAMT.
Character length and limitations: Value is a positive number which cannot exceed
$10,000 USD in any currency. It includes no currency symbol. It must have 2 decimal
places, the decimal separator must be a period (.), and the optional thousands
separator must be a comma (,).
Field Description