You must configure either one-way or two-way TLS to enable the Communication Manager notification service. To configure two-way TLS, do the following:

• Downloading the System Manager PEM certificate

• Downloading the pem file to Communication Manager

• Adding a trusted certificate to Communication Manager

• Configuring notify sync between Communication Manager and System Manager

• Adding the Communication Manager certificate to the System Manager trust

• Enabling two-way TLS in System Manager