To use your new certificate without errors/warnings, you need to add SAP issuer root certificate authority to trusted CAs in client browser/system and server side too.
Root Certificates | SAP Support Portal -> SAP SSL Test Server CA Certificate
To use your new certificate without errors/warnings, you need to add SAP issuer root certificate authority to trusted CAs in client browser/system and server side too.
Root Certificates | SAP Support Portal -> SAP SSL Test Server CA Certificate