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RFC not working Error: 679, gw/acl_mode set to 0

Hello,

I am trying to setup RFC connection and I get the following errors:

Transaction program not registered

Return Code 679

Network:

Ping from Host to Server works

Telnet to port 3300 from host to server works

Niping works

Also gw/acl_mode is set to 0

Thanks for any help!

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1 Answer

  • Sep 05, 2018 at 07:23 AM

    Hi Stefan

    Are you trying to use an RFC of type T?

    https://wiki.scn.sap.com/wiki/display/ABAPConn/Activation+Types+for+Type+T+RFC+Destinations

    If yes, the external program has to be registered to the SAP gateway first before the RFC will work. You can check this in transaction SMGW - by going to "Logged On Clients" in one of the upper menu's. If the program isn't registered, youi'll need to take care of this first and figure out if it cannot connect to the gateway, why that is. Check log files on date/time stamp after attempting.

    Best regards

    Tom

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