- Download the latest extension: iam4hosts.com/download/plesk.zip always gives you the newest version.
- In Plesk go to Extensions → My Extensions → Upload Extension, choose the zip and confirm.
- Open it from Extensions → My Extensions → Inactive Account Manager, or from the left navigation. Resellers find it in their own navigation.
The extension creates its own database and a scheduled task that runs every five minutes. On Windows you can check the zip's fingerprint first in PowerShell:
Get-FileHash .\inactive-account-manager-plesk-<version>.zip -Algorithm SHA256
In Plesk, an "account" is a subscription (shown by its main domain), its owner is the reseller, and "suspended" means the subscription is disabled by the extension.