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Message no. SB331 : Error when opening an RFC connection

Former Member

‎2020 Jan 21 12:21 PM

0 Likes
20,548

Hi,

When trying to implement a note via snote the system shows the following message:

Error in remote connection to destination SAPOSS: Error when opening an RFC connection (LB: Hostname or service of the message server unknown DEST =SA

Message no. SB331

Diagnosis

An error occurred during RFC communication with a remote system. SAPOSS was used as a destination (maintain destinations in transaction SM59). The message returned by the RFC interface is:

Error when opening an RFC connection (LB: Hostname or service of the message server unknown DEST =SA

System Response

No data was transmitted from or to the remote system.

Procedure

Notify the system adminstration.

NB : the RFC connection is maintained and we already implemented notes but I can't find why it doesn't work now.

Is there any way to resolve the problem

Thanks in advance

Hi,

When trying to implement a note via snote the system shows the following message:

Error in remote connection to destination SAPOSS: Error when opening an RFC connection (LB: Hostname or service of the message server unknown DEST =SA

Message no. SB331

Diagnosis

An error occurred during RFC communication with a remote system. SAPOSS was used as a destination (maintain destinations in transaction SM59). The message returned by the RFC interface is:

Error when opening an RFC connection (LB: Hostname or service of the message server unknown DEST =SA

System Response

No data was transmitted from or to the remote system.

Procedure

Notify the system adminstration.

NB : the RFC connection is maintained and we already implemented notes but I can't find why it doesn't work now.

Is there any way to resolve the problem

Thanks in advance

Reply
1 REPLY 1
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kashyap_shah3
Contributor

‎2020 Jan 21 12:28 PM

8,845

Hi Sabrine,

SAPOSS RFC connection must now be maintained with the technical user than anyone's individual S User.

Following are couple of handy SAP Notes:
2740667 - RFC connection SAPOSS to SAP Service & Support backbone will change (latest) in January 20...
2668288 - Differences between personalized S-User and Technical Communication User

Above all, assuming you've updated your SAP estate with new support backbone connectivity.

Let me know how you get on.

Best Regards,
Kashyap Shah