Scheduled Tasks link is not shown when logging as a customer/reseller

Log into Plesk.

Open Service Plans > Reseller Plans tab > service plan name > Permissions tab > select Scheduler management checkbox and apply changes by clicking to Update & Sync button:

Note: Depending on number of subscriptions under this service plan, synchronization may take some time.

Create Add-on plan in Service Plans > Add an Add-on

Open Permissions tab and select Scheduler management option > OK.

Assign Add-on plan to subscription in Subscriptions > example.com > Change plan/add-ons:

OR

Open Subscriptions > example.com > Customize > Permissions > check Scheduler management box and apply changes by clicking to Update & Lock button.

Note: In this case subscription be locked for synchronization with service plan.

Connect to the server via SSH or via RDP.

Run the command below:

# plesk bin subscription_settings --update example.com -manage_crontab true