If you use Basic Authentication to log on to ABAP Application Server, you can choose either a standard SAP user or an internet user :
The default SAP user is the user name entered in transaction SU01 .
The Internet user is the alias name. This can be longer than the normal SAP user name. This can also be set in SU01 .
Depending on the settings, the input in the HTTP popup for Basic Authentication is interpreted as either a user name or an alias.
If you want to change the user type for the Basic Authentication logon procedure in a service or service node, proceed as follows:
In transaction SICF, double-click the required service or service node.
Choose Change .
Under Logon Data/Authentication , choose Standard SAP User or Internet User .
If you make this setting in a service node, the data is passed on to all services under this node.
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