In Plesk > Tools & Settings > Performance Booster > example.com the following notification is displayed under the Set optimized PHP settings option:
Following permissions are not allowed in the subscription, or service plan:
Common PHP settings management
Insufficient permissions on the subscription/service plan level. Common PHP settings management should be allowed to enable the feature.
Note: If the server is running with the Plesk Web Admin license edition, refer to the 'via CLI (On the Subscription level)' section
- Log into Plesk.
- To adjust permissions: