- Plesk 12.5 for Linux
Additional users at Subscriptions > example.com > Users cannot access Let's Encrypt on a subscription level. Even if user role has all the permissions (such as WebMaster). An error is shown:
This is Plesk bug with ID #PPPM-6101 that will be fixed in future updates.
As a workaround, set certificates in Let's Encrypt under subscription's owner or administrator account.