To connect to SAP through HTTPS and read from SAP BW sources, ensure that an OpenSSL certificate is available on both the Secure Agent machine and the SAP system.
Create an OpenSSL certificate in the Secure Agent machine. Then, import the created certificate in the PSE format to the SAP system truststore.
Additionally, to enable HTTPS in an SAP BW connection, you need to specify the generated keystore password and private key password of the keystore file both in the SAP BW connection properties and in the SAP system.