Set the HTTPS port to use in the ICM parameter icm/server_port_. Also, to explicitly specify the location of the SAP Cryptographic Library (for example, if it is not in the default location, which is the directory specified by the $(DIR_LIBRARY) parameter), set the parameter ssl/ssl_lib.
See the example below.

Tip

SSL Configuration: Location of the SAP Cryptographic Library

ssl/ssl_lib =

port configuration

icm/server_port_ = PROT=, PORT=5$(SAPSYSTEM)01[, VCLIENT=<0,1,2>]
Note
To configure a different port for HTTPS communication, specify the desired port in the PORT parameter.

In addition, to specify the server‘s behavior regarding the use of certificates for client authentication, set the corresponding value in the VCLIENT parameter:

0: No certification is required and the server does not ask for one.
1: The server asks the client to transfer a certificate. If the client does not send a certificate, authentication is performed using another method, for example, basic authentication (default setting).
2: The client must transfer a valid certificate to the server, otherwise access is denied.
There are also additional optional parameters. For example, to specify port-specific SSL configurations, use the parameter icm/ssl_config_.

For more information, see icm/server_port_.

Restart the ICM so that the parameter settings take effect.
Results
After restarting the ICM instance, the HTTPS port configuration appears in Active Services for the ICM.

Example
The example below shows an extract from an ICM instance profile with SSL and HTTPS port configuration.

...

SSL Configuration: Location of the SAP Cryptographic Library

ssl/ssl_lib = $(DIR_EXECUTABLE)/libsapcrypto.so

https port configuration

icm/server_port_4 = PROT=HTTPS, PORT=5$(SAPSYSTEM)01, VCLIENT=1
...

Maintaining ICM Parameters for Using SSL for As JAVA