Connection Errors 

 

No Connection Information Available

Symptom

In the area Landscape à Connectivity: Register RFC/Current, the following message appears:

Connection data in saprfc.ini missing

Meaning

In the TREX configuration, no connection information for SAP systems has been specified.  

Action

...

       1.      In the area Landscape à Connectivity: Register RFC/Current, choose the Create Connection function.

       2.      Specify the connection information for the SAP system.

       3.      If there is no logon data for the SAP system, specify this as well.

More Information

Initially Configuring the RFC Connection  

No Logon Information Available

Symptom

The following message is displayed:

Logon data in topology.ini missing

Meaning

In the TREX configuration, no SAP system user is specified that the TREX admin tool (stand-alone) can use to log on to the SAP system.

Action

...

       1.      Define which user is to be used to log on (see Creating an SAP System User for the TREX Admin Tool (Stand-Alone)). 

       2.      Specify the user in the TREX configuration.

To do this, use the TREX admin tool (stand-alone), Landscape à Connectivity: Register RFC/Current area, Logon Data function.

No RFC Destinations Available in the TREX Configuration

Symptom

The following message is displayed:

RFC Destination(s) in topology.ini missing

Meaning

No RFC destinations are specified in the TREX configuration. It is possible that no RFC destinations have been created in the SAP system.

Action

Depending on the situation, choose one of the following actions:

Situation	Action
You have already created an RFC destination in the SAP system.	In the area Landscape à Connectivity: Register RFC/Current, choose the RFC Destinations function. Specify the name of the RFC destination.
You have not yet created any RFC destinations.	In the area Landscape à Connectivity: Register RFC/Current, choose the RFC Destinations (SM59) function. You use this function to create an RFC destination in the SAP system and register it in the TREX configuration. For more information, see Configuring the RFC Connection in the TREX Admin Tool.

 

Connection Fails

Symptom

The following message is displayed:

Connect to SAP System Failed

Meaning

Connection to an SAP system failed. Common causes are:

●      The connection and logon information that is specified in the TREX configuration is incomplete or incorrect.

●      The SAP system cannot be reached on the network.

●      The user that is used to log on to the SAP system is locked in the SAP system.

●      The user that is used to log on to the SAP system has not been created in the default client.

●      The SAP system is earlier than Release 6.20.

●      The SAP system does not contain the support package stack that includes the necessary functions.

Action

...

       1.      You must check the following information:

○       SAP system connection information

Choose Connection and check the section that refers to the SAP system. For example, compare this section with the information about the SAP system that is stored in SAP Logon.

○       Logon information

Choose Logon Data and check whether logon data is specified for the SAP system. If no logon information is defined, enter a SAP system user that exists in the SAP system.

       2.      Only for connection type A: Check whether the application server that is used to create the connection is active. To do this, use transaction SM51 in the SAP system.

If the application server is not active, specify a different application server in the TREX configuration. To do this, use the TREX admin tool (stand-alone), Landscape à Connectivity: Register RFC/Current area, Connection function.

       3.      Check whether the SAP system can be reached on the network. To do this, open a command prompt and try to reach one of the following servers with the ping command: 

○       The application server used to create the connection (connection type A)

○       The message server (connection type B)

       4.      Check whether the SAP system user that the TREX system uses to log on to the SAP system is locked. To do this, use transaction SU01 in the SAP system.

If the user is locked, unlock it.

       5.      In the TREX admin tool (stand-alone), open the help information that is available for the error message Connect to SAP System Failed.

This help information can contain information about more possible causes of the error.

       6.      Check the current version of the trace file TrexTCPClient<process_ID>.trc in Landscape à Connectivity: Register RFC/Current.

The trace file contains messages that can provide information about the causes of errors.