Can't sync subscriptions with service plan: Hard disk quota is not supported

Symptoms

• New and current subscriptions on a particular service plan fail to sync:

  Syncing the subscription with its service plan failed because some of the services or resources defined in the plan cannot be actually provisioned with the subscription.

  Warning: Could not sync the subscription with the service plan. The following settings of the subscription conflict with the service plan: Hard disk quota

• Hard quota on disk space is grayed out in Domains > example.com > Hosting:

  Unlimited. Hard disk quota is not supported due to the configuration of the server file system

Cause

This is caused by product issue PPPM-9163. Service plans allow managing the hard disk quota, even though it's not supported by the server.

Resolution

While a fix is released, the service plan can be configured to match the server:

1. Log in to Plesk

2. Go to Service Plans > Example Plan > Hosting Parameters

3. Check Unlimited next to Hard disk quota

4. Press Update & Sync

   Note: Locked subscriptions won't be synced until they're unlocked.