You can either hide promos at all or hide some specific promos, namely:
In all these cases, add the following lines to the panel.ini configuration file to get the desired result.
To hide all promos in Plesk:
[promos]
enabled = off
[aps]
serverAppsPromoEnabled = off
To hide promos on the Server Administration Panel and Customer Panel > Home pages:
[promos]
enabled = off
To hide Plesk promos on the Server Administration Panel > Tools & Settings and Tools & Settings > Mail Server Settings pages:
[aps]
serverAppsPromoEnabled = off
To hide a certain promo on the Server Administration Panel and Customer Panel > Home pages:
[promos]
promo_id.active = false
The promo_id may be one of the following:
cbm - for the Customer and Business Manager promo.cloudFlare - for the mod_cloudflare Apache module promo.commTouch - for the Plesk Premium Outbound Antispam promo.googleIntegration - for the Integration with Google Services promo.helpDesk - for the HelpDesk promo.mobile - for the Plesk Server Mobile Monitor and Plesk Server Mobile Manager promos.sitebuilderTrial - for the Presence Builder Try and Buy mode promo.Otherwise, it can be your own promo name.