POS: Error on Real-Time service access – a business connector session already exists
Description
POS (MPOS) fails to access Retail Transaction Service with error A Business Connector session already exists.
Steps that worked for me
- Restart Retail Server web application in IIS
Error details
CommerceRuntimeException was thrown.Microsoft.Dynamics.Commerce.Runtime.CommunicationException: Exception while calling invoke method RetailServerStaffLogOn.System.ServiceModel.Security.MessageSecurityException:
System.ServiceModel.FaultException: A Business Connector session already exists. Server stack trace:
in System.ServiceModel.Channels.SecurityChannelFactory`1.SecurityRequestChannel.ProcessReply(
Message reply, SecurityProtocolCorrelationState correlationState, TimeSpan timeout) in
System.ServiceModel.Channels.SecurityChannelFactory SecurityRequestChannel.Request(
Message message, TimeSpan timeout) ..
in System.ServiceModel.Channels.ServiceChannelProxy.Invoke(
IMessage message) Exception rethrown at [0]: ..
in Microsoft.Dynamics.Commerce.Runtime.TransactionService.TransactionServiceClient.GetResponseFromMethod(
String methodName, Object[] parameterList, Boolean useExtensionMethod) in Microsoft.Dynamics.Commerce.Runtime.TransactionService.TransactionServiceClient.CreateMessageSecurityException(
String methodName, MessageSecurityException exception) ..
in Microsoft.Dynamics.Commerce.Runtime.Services.UserAuthenticationTransactionService.LogOnUser(
UserLogOnServiceRequest request)
Microsoft.Dynamics.Commerce.Runtime.Services.UserAuthenticationService.EmployeeLogOnRealTimeService(
UserLogOnServiceRequest request) in
Microsoft.Dynamics.Commerce.Runtime.Services.UserAuthenticationService.LogOnUser(
UserLogOnServiceRequest request) in
Microsoft.Dynamics.Commerce.Runtime.Services.UserAuthenticationService.Execute(Request request)