2012

SOAP API Developer Reference August 2012 307
API Error Codes
SetExpressCheckout API Errors
A
10411 This Express Checkout
session has expired.
This Express Checkout session has
expired. Token value is no longer
valid.
If you receive this error, you
must return your buyer to
PayPal to approve the use of
PayPal again. Display an error
message to inform the buyer
that the transaction expired,
and provide a button to return
to PayPal. In this situation, you
are effectively restarting the
entire checkout process. (Do
not reuse the expired token
value on
SetExpressCheckout
request.) However, because
you already know the final
OrderTotal, be sure to
update the value for that
element if appropriate. You
might also want to update the
values for ReturnURL and
CancelURL, if necessary.
10412 Duplicate invoice Payment has already been made for
this InvoiceID.
PayPal checks that
InvoiceID values are unique
for any particular merchant. If
you send an InvoiceID value
already associated with another
transaction in the PayPal
system, PayPal returns error
code 10412.
You might not be able to
correct this error during an
actual checkout. If you receive
this error, research why it
might occur and modify your
implementation of Express
Checkout to ensure that you
generate unique invoice
identification numbers.
10413 Transaction refused because
of an invalid argument. See
additional error messages for
details
The totals of the cart item amounts
do not match order amounts.
If you receive this error, be
sure the total of the payment
detail item parameters, such as
ItemTotal, HandlingTotal,
TaxTotal, and so forth add up
to the order total.
Error
Code Short Message Long Message Correcting This Error...