Entered into CA Management, Created a Root CA, Added server Certificate & a
client Certificate. 

Exported as a Common server Certificate. 

Opened Yast Common server Certificate and confirmed that certificate is
exported.

Opened Yast Authentication server (open LDAP), Under TLS settings, enabled TLS,
Enabled use Common server certificate. 

I get Error as, Yast-CA.pem is not available.

reason, 
default search location : 
/usr/share/pki/trust/anchors/YaST-CA.pem

Actual saved location, 
/etc/pki/trust/anchors/Yast-CA.pem

Request you to kindly correct this issue.