If the system runs on 7.31 as a prerequisite you have to deploy at least the following three add-ons IW_BEP, GW_CORE and IW_FND using transaction SAINT. When using SAP NetWeaver 7.40 or higher, this step is not necessary since the software component SAP_GWFND is already deployed as part of SAP Basis.
Minimum requirement:
SAP Gateway Backend Framework:
IW_BEP 200 SP12
SAP Gateway Hub Framework:
IW_FND 250 SP12
GW_CORE 200 SP12
The compatibility matrix about SAP Gateway 2.0 support package stacks and the corresponding support package stacks for software component SAP_GWFND in SAP NetWeaver 7.40, 7.50 are to find in the SAP Note 1942072.
In order to use the HTTPS protocol for the RFC connection, install the security certificate from ITSM system into the SAP system, transaction code STRUST, usually under the node ‘SSL client SLL Client Standard’.
4
Create RFC connection to ITSM
SM59
Communication with ITSM system always takes place via the RFC connection, where the information about the authentication and the service URI for the REST service is stored. Logon data, etc. is stored by transaction SM59 already in a secure manner and the REST client implementation can rely on this.
Create RFC destination with type 'G' (HTTP Connection to External Server)
Technical Settings
RFC Destination Name: Choose a meaningful name to identify the connection (e.g., SMARTITSM).
Connection Type: ‘G’ > HTTP Connection to External Server