create sap user

Question: hi:
we want to create one user to realize : we can use the user to call
the bapi or rfc function in extern system but we want this user can't login
on our system through sap gui .
and we konw the user should have the profile of "S_RFC",but i don't konw how to prevent this user logining sap through sap gui?
thanks and kind regards!

Answer:
Hi,

From Tcode "SU01",try to set the "user type" to Service, not Dialog
_________________
Regards,

Gamma

Answer:
Sorry,

Do not set as "service", try as "System" or "communication"
_________________
Regards,

Gamma
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