TransactionId Property
The PayPal transaction ID associated with the payment.
Syntax
[VB.NET] Public Property TransactionId As String
[C#] public string TransactionId {get; set;}
Remarks
A chained or parallel payment can be viewed as a set of individual payments. PaymentKey and TrackingId refer to the entire set, but TransactionId refers to one specific payment inside of the larger set. For a simple payment, the TransactionId refers to the same thing as the PaymentKey and TrackingId.
Specify the payment you're interested in using either the PaymentKey, TransactionId, or TrackingId. It is not recommended to specify more than one of these properties, unless they identify the same payment. If the properties do not belong to the same payment, the TransactionId is used; next, PayPal uses the PaymentKey. If more than one of these is specified, the TrackingId is never used.
Note that the Instant Payment Notification message associated with the payment will contain this transaction id. See the IPN component for more info about these notifications.
Default Value
""