Approve trust anchor certificate
When you approve the root certificate, an account user is allowed to upload the ICA certificate and establish the chain of trust.
To approve a trust anchor certificate:
Sign in to DigiCert ONE.
Select the Manager menu (top right) > Software Trust.
Navigate to: Account > Trust anchor certificates.
Hover over the trust anchor certificate alias that you want to activate.
Click on the approve (thumbs-up) icon that appears to the right of the certificate alias.