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Plesk Help Center
Licensing and Online Sales
Plesk Online Store
Online Store error: order is identified as potentially fraudulent
How do I remove add-ons from my license in Plesk Online Store account?
How to upgrade the license in Plesk Online Store account
Order Plesk Add-Ons and Order Plesk Upgrades icons are not available on License Management
Is it possible to upgrade or downgrade a license between Plesk editions?