Article ID: 119348, created on Dec 27, 2013, last review on Jun 17, 2016

  • Applies to:
  • Web Presence Builder 11.5
  • Plesk 12.0 for Linux
  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 12.0 for Windows
  • Plesk 11.0 for Windows


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:

  1. 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:

  2. Switch to a custom billing solution according instructions from this KB.

Search Words


Trial sites

Customer and Business Manager


Try and Buy

Parallels Customer and Business Manager is not installed

Trial mode

Trial (Try and Buy) Mode

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