2009

Express Checkout API Operations
Callback API
40 08 April 2009 Name-Value Pair API Developer Guide
Callback Request
Callback Request Fields
Field Description
METHOD (Required) Must be Callback.
TOKEN (Optional) A timestamped token, the value of which was returned by
SetExpressCheckout response.
Character length and limitations: 20 single-byte characters
CURRENCYCODE (Required) The three-character currency code for the transaction from the Express
Checkout API. Default: USD
LOCALECODE (Optional) Locale of pages displayed by PayPal during Express Checkout.
Character length and limitations: Any two-character country code.
The following two-character country codes are supported by PayPal:
z AU
z DE
z FR
z IT
z GB
z ES
z US
Any other value will default to US.
L_NAMEn Item name from the Express Checkout API.
These parameters must be ordered sequentially beginning with 0 (for example,
L_NAME0, L_NAME1).
L_NUMBERn Item number from the Express Checkout API.
These parameters must be ordered sequentially beginning with 0 (for example,
L_NUMBER0, L_NUMBER1).
L_DESCn Item description from the Express Checkout API.
These parameters must be ordered sequentially beginning with 0 (for example,
L_DESC0, L_DESC1).
L_AMTn Item unit price from the Express Checkout API.
These parameters must be ordered sequentially beginning with 0 (for example,
L_AMT0, L_AMT1).
L_QTYn Item unit quantity from the Express Checkout API.
These parameters must be ordered sequentially beginning with 0 (for example,
L_QTY0, L_QTY1).
L_ITEMWEIGHTVALUEn
,
L_ITEMWEIGHTUNITn
The weight of the item. You can pass this data to the shipping carrier as is without
having to make an additional database query.
These parameters must be ordered sequentially beginning with 0 (for example,
L_ITEMWEIGHTVALUE0, L_ITEMWEIGHTVALUE1).