You can upgrade to Microsoft Dynamics AX 2009 directly from Microsoft Dynamics AX 4.0 or from Microsoft Dynamics AX 3.0 with a supported service pack. This section contains information about tasks that you need to complete before you can install Microsoft Dynamics AX 2009.This section contains the following topics.

• Upgrade tasks for supported upgrade paths

• Set the appropriate user permissions

• Back up your data

• Clean up your data

• Copy your existing application files

• Prepare Axapta 3.0 data for upgrade to Dynamics AX 2009

• Upgrade Team Server