■ Enable your PayPal account for this service. See Step 13 in the procedure for setting up a PayPal account, To set up your PayPal account:.The payPalGetTxnDetailsService service returns information about a transaction. When you request payPalGetTxnDetailsService, you must include the transaction ID that was returned by one of these services:When you request payPalGetTxnDetailsService, you must include the following fields in the request: