Define RFC connection for Web services

• Run transaction SM59.
• First, select "ABAP Connection" and click on "Create".

1.  First, in the field "RFC Destination", type exactly: WS_SRV_SAP_WSRT100.
2. Validate by hitting the "Enter" button on your keyboard. The IP address will automatically appear.
3. You can now SAVE your entry.

• We are now going to specify the user used for the connection to the system.

1. First, you need to go to the "Logon and Security" tab.
2. Then, in the field "User", type exactly: SAP_WSRT.
3. In the field "Password", type exactly: ( refer to step 4 ).
4. Validate by hitting the "Enter" button on your keyboard. The pop-up will automatically appear, click on OK.

• Go to the "Unicode" tab.

1. Select Radio Button Unicode.

SAVE.