If most of the DNs specified in certificate requests have common components (except the unique identifier), then you can specify them and all certificate requests generated by Oracle Certificate Authority will populate with these default common components.
To set the default DN components for certificate enrollment:
Navigate to the General page of the Configuration Management tab.
In the Default Base DN Components region, enter the DN components that are common to most of your users. All fields are optional.
Choose one of the following options:
Click Revert to restore page settings.
Click Cancel to discard your changes.
Click OK to save your changes.
Restart the Oracle Certificate Authority server for your changes to take effect. See Starting and Stopping Oracle Certificate Authority Server