PayPalInvoiceSDK (nuget): The PayPal Invoice SDK provides the following: CreateInvoice API Operation: Use the CreateInvoice API operation to create a new invoice. The call includes merchant, payer, and API caller information, in addition to invoice detail. The response to the call contains an invoice ID and URL.  CancelInvoice API Operation: Use the CancelInvoice API operation to cancel an invoice.  CreateAndSendInvoice API Operation: Use the CreateAndSendInvoice API operation to create and send an invoice.  GetInvoiceDetails API Operation: Use the GetInvoiceDetails API operation to get detailed information about an invoice.  MarkInvoiceAsPaid API Operation: Use the MarkInvoiceAsPaid API operation to mark an invoice as paid.  MarkInvoiceAsRefunded API Operation: Use the MarkInvoiceAsRefunded API operation to mark an invoice as refunded. This API operation canonly be used for full refunds.  MarkInvoiceAsUnpaid API Operation: Use the MarkInvoiceAsUnpaid API operation to mark an invoice as unpaid.  SearchInvoices API Operation: Use the SearchInvoice API operation to search an invoice.  SendInvoice API Operation: Use the SendInvoice API operation to send an invoice to a payer, and notify the payer of the pending invoice.  UpdateInvoice API Operation: Use the UpdateInvoice API operation to update an invoice.
Keywords: PayPal|SDK|.NET|C#|Invoice