0 PayFlow Pro Authentication Failed 1 Jeremy Turgeon posted 9 Years Ago I setup our PayFlow Pro information under Financial Gateways and went to submit a credit card donation on the external site. It keeps giving me a "Payment Error [1] User authentication failed" error. I've double checked the settings and even copy+pasted the password into Payflow Pro's website to make sure it's correct. The gateway is active and I've tried it in Test and Live modes without success. Not sure what I'm doing wrong. Has anyone been able to successfully use PayFlow Pro with Rock? Update - While testing different authentication credentials I now get this error: HttpUnhandledException in System.Web Message Exception of type 'System.Web.HttpUnhandledException' was thrown. Stack Trace at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) -NullReferenceException in App_Web_vmqf5llu Message Object reference not set to an instance of an object. Stack Trace at RockWeb.Blocks.Finance.AddTransaction.ProcessConfirmation(String& errorMessage) at RockWeb.Blocks.Finance.AddTransaction.btnNext_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)