Description
Whenever Users tries to Login via Studio or Transaction User gets the Error "Connection to Message Server Failed Service ? Unknown"
Applies to
10X; 11X
Solution
*** While making these changes please ensure to press entre after making entry in services file and also to restart the machine ( whether server or local machine)****
This error occurs when entry of the sap system message port is not present in the services file.
Location of services file: %windir%\system32\drivers\etc
Add the following entry at the end of services file.
sapms[SID] 36[system number]/tcp # comment
Note : this entry in the services file should be followed by {return} key.
Example:
W47 connects to sap using message server logon with system number 03
sapmsW47 3603/tcp # SAP System Message Port for W47
How to determine the system number?
Logon to SAP server and run t-code smms. It will show the message server port.
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