3095201 - On Premise access fails with error message "Invalid server certificate"

Making a call from an application to a backend turns back with the error message: "Invalid server certificate".

From SCC trace ljs_trace.log, the following log appears:

=====
#DEBUG#com.sap.core.connectivity.spi.processing.OutboundConnectionErrorHandler#tunnel-client-12-3#4x567890ab#Protocol processing error:
com.sap.core.connectivity.protocol.http.handlers.HttpProtocolException: Invalid server certificate
at com.sap.core.connectivity.protocol.http.handlers.HttpProtocolClientCodec.exceptionCaught(HttpProtocolClientCodec.java:81)
at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:302)
...
...
...
Caused by: java.lang.IllegalArgumentException: Certificate contains unsupported DNS name: 
<backend server DNS name e.g.: "xyz.mycompany.com">
 at com.sap.core.connectivity.spi.util.CertificateUtils.assertDNSName(CertificateUtils.java:241)
 at com.sap.core.connectivity.spi.util.CertificateUtils.extractSubjectAlternativeDNSNames(CertificateUtils.java:206)
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• SAP Business Technology Platform(BTP)
• SAP Cloud Connector 2.13.2 or higher

Cloud Connector, SCC, SAP CC, Certificate, invalid, rejected, Update, SAN, Subject Alternate Name , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem