Plesk Performance Booster displays the warning:

[mahesh]

Question:
Plesk Performance Booster displays the warning: Following permissions are not allowed in the subscription, or service plan: PHP version and handler management
Symptoms
In Plesk > Tools & Settings > Performance Booster > example.com the following notification is displayed under the Switch to modern PHP version option:

Following permissions are not allowed in the subscription, or service plan:
PHP version and handler management

Cause
Insufficient permissions on the subscription/service plan level. PHP version and handler management should be allowed to enable the feature.

Resolution
Note: If the server is running with the Plesk Web Admin license edition, refer to the 'via CLI (On the Subscription level)' section

1.Log into Plesk.
2.To adjust permissions:

On the Service Plan level:

• Navigate to Service Plans > service_plan_name > Permissions tab.
• Enable the option PHP version and handler management:

• Click on the Update & Sync button to apply changes for all the subscriptions under the selected service plan.

Note: Changes will not be applied for the Locked subscriptions

On a Subscription level:

Warning: After applying changes on the subscription level, the subscription will be locked from the synchronization with its service plan

• Navigate to Subscriptions > example.com.
• On the right navigation pane click on the Customize link:

• Switch to the Permissions tab.
• Enable the PHP version and handler management permission:

• Click on the Update & Lock button to apply changes.

via CLI

• Connect to the server via SSH/RDP.
• Additional step for Plesk on Windows: start a Command Prompt as Administrator.
• To adjust permissions:
• On the Service Plan level:

On the Service Plan level:

Code Select Expand

#plesk bin service_plan -u "Default Simple" -manage_php_version true
Note: Change Default Simple in the command above with the name of the required service plan

Note: Changes will not be applied for the Locked subscriptions

On the Subscription level:

Code Select Expand

#plesk bin subscription_settings --update example.com -manage_php_version true
Warning: After applying changes on the subscription level, the subscription will be locked from the synchronization with its service plan