I've configured " Trial (Try and Buy) Mode " in my Parallels Plesk Panel.The following warning is shown when I open the Trial mode access URL:
Presence builder working in Trial mode. To publish this trial website, buy a service plan with Presence builder included
If I click " Buy Service Plan " I get the error:
Parallels Customer and Business Manager is not installed
By default, the store entry point URL points to " Customer and Business Manager ". The errors above mean that " Customer and Business Manager " is not installed/configured in Parallels Plesk Panel.
Use one of the following solutions to resolve the issue:
Install and configure integration with " Customer and Business Manager " in Parallels Plesk Panel.
Install billing component to Parallels Plesk Panel via Plesk CLI:
~# /usr/local/psa/admin/sbin/autoinstaller --select-release-current --install-component billing
Login to Parallels Plesk Panel as admin and complete integration with Customer & Business Manager by click on " Click here to complete the installation " on the Home page:
Switch to a custom billing solution according instructions from this KB .