947272 Error message when you try to upgrade a license key in Microsoft Dynamics CRM 4.0 Deployment Manager: “The license code entered is not valid for upgrade”
You have installed Microsoft Dynamics CRM 4.0 by using an Enterprise trial license, and you try to upgrade to a Microsoft Dynamics CRM 4.0 Workgroup license or to a Microsoft Dynamics CRM 4.0 Professional license.
You cannot upgrade a Microsoft Dynamics CRM Enterprise trial license to a Microsoft Dynamics CRM Professional license or to a Microsoft Dynamics CRM Workgroup license.
To work around this problem, install a new Microsoft CRM 4.0 deployment by using the new license key, create a new organization, and then import the organization from the existing installation. To do this, follow these steps. After you follow these steps, you will be able to log on to the new organization and see all the data and customizations from the existing installation….. (see the entire KB for the step-by-step)