When you use Microsoft BizTalk Windows Communication Foundation (WCF)-SAP Adapter for mySAP Business Suite 3.0 to send some Remote Function Call (RFC) requests to an SAP system, the WCF-SAP adapter may incorrectly keep connections open.
Note To close the connections, you must restart the BizTalk Server host that runs the adapter.
Additionally, new connections fail and you receive some error messages when the numbers of connections accumulate to a large number.
For example, you receive the following error on a send port:
Error ID:
0xc0c0167a
Error Description:
Microsoft.ServiceModel.Channels.Common.ConnectionException: Details: ErrorCode=RFC_OK. ErrorGroup=RFC_ERROR_COMMUNICATION. SapErrorMessage=SAP_CMINIT3 : rc=20 > Connect to SAP gateway failed Connect_PM GWHOST=<IP address>, GWSERV=3300, SYSNR=00 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR max no of 100 conversations exceeded TIME <Day Date Time> RELEASE 710 COMPONENT CPIC (TCP/IP) with Unicode VERSION 3 RC 466 MODULE r3cpic.c LINE 14008 COUNTER 113. AdapterErrorMessage=. ---> Microsoft.Adapters.SAP.RFCException: Details: ErrorCode=RFC_OK. ErrorGroup=RFC_ERROR_COMMUNICATION. SapErrorMessage=SAP_CMINIT3 : rc=20 > Connect to SAP gateway failed Connect_PM GWHOST=10.20.64.206, GWSERV=3300, SYSNR=00 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR max no of 100 conversations exceeded TIME <Day Date Time> RELEASE 710 COMPONENT CPIC (TCP/IP) with Unicode VERSION 3 RC 466 MODULE r3cpic.c LI.
The BizTalk WCF-SAP adapter for mySAP Business Suite 3.0 is included in Microsoft BizTalk Adapter Pack 2.0 or in Microsoft BizTalk Adapter Pack 2010 .