Unable to sync a subscription with service plan on Plesk server: Unable to accept the template: the following limitations are exceeded

Symptoms

• When trying to sync customer's subscription with service plan, the following error occurs:

  C:\> plesk bin subscription --sync-subscription example.net
  
  Unable to accept the template: the following limitations are exceeded.
  Description Requested Allowed
  Disk space 5.00 GB 0 B
  Microsoft SQL database quota Unlimited 0 B
  Microsoft SQL Server databases 1 0

• The following error may present in %plesk_dir%\admin\log\php-error.log:

  CONFIG_TEXT: ERR [panel] Unable to apply plan changes to reseller. Error: Unable to set the required resource usage limit (50 GB Disk space) because the new value is less than the amount of resources reserved for your customers or used by yourself (Unlimited Disk space).
  PHP User Warning : Exception caught during form rendering. Message: Unknown plan property name: overuse_block File: C:\Program Files (x86)\Plesk\admin\plib\Domain\Properties.php Line: 211

• Cannot synchronize a subscription:

  Synchronization failed

  OR

  Unable to allocate required resources. Only 0 MB of space is available.

• The subscription belongs to a customer, this customer belongs to a reseller.

   

Cause

Reseller's limits were exceeded. Limits that were allocated for reseller's customer overtake their own resources.

Resolution

Set the limits, distributed within Subscriptions and Customers to less or equal to the ones that reseller has: increase reseller's limits or decrease customer`s (subscription) limits.

Resolution

1. Connect to the server via SSH / via RDP;

2. Unlock the subscription:

   # plesk bin subscription --unlock-subscription example.com

3. Discover insufficient resources (remember the command output):

   # plesk bin subscription --sync-subscription example.com

4. Discover the customer who owns the subscription at Subscriptions screen:
   

   
   

5. Discover the reseller who owns the customer at Resellers screen:
   

   
   

6. Go to Home > Resellers > Reseller1 > Customize (under the right column) > Resources and add the required resources. Press Apply&Lock .

7. Synchronize the subscription:

   # plesk bin subscription --sync-subscription example.com

Alternative solution

Set Overselling policy as Overselling is allowed at Home > Resellers > Reseller1 > Customize (under the right column).

Note: 'Overselling is allowed' option means that for reseller's overuse calculated statistics value will be used instead of "Maximum possible". If 'Overselling is allowed', then reseller with 1 GB/month traffic allowed will be able to create any amount of subscriptions, however, if the sum of their traffic will be more than 1GB, then all 'Overuse policy' will be used.