New Guy here!
I’ve just added SagePay Server as a payment method but get an error when trying to put a transaction through in test mode.
An uncaught Exception was encountered
Message: The transactionId parameter is required
Line Number: 201
Also, I was expecting to be transferred over to the SagePay gateway as I use SagePay server on OpenCart and the checkout transfers to SagePay to complete the transaction. This is beneficial as we have a PayPal payment method integrated into our SagePay payment page so we can track all transactions in one place. It this possible on here?