Make sure you meet these prerequisites:
In your CertCentral account, in the sidebar menu, click Subaccounts.
On the Subaccounts page, click Create subaccount.
Alternatively, you can send an email invitation.
On the Create subaccount page, enter the account information for the subaccount.
DigiCert automatically sends an email to the subaccount contact with a link and instructions for setting up their account credentials (e.g., password).
On the subaccounts page, you can manage all your subaccounts. Click an organization name to edit subaccount details, change their billing settings, product pricing, and product availability.
To view orders placed by your subaccounts, go to the Subaccount orders page. In the sidebar menu, go to Subaccounts > Orders.