Microsoft Dynamics AX Business Connector proxy in MSDAX

This proxy is a Windows domain user account that enables Business Connector to act on behalf of Microsoft Dynamics AX users when user accounts are authenticated with the AOS. A proxy account must be created in Active Directory on the domain controller before Business Connector can be used to authenticate Enterprise Portal users. If the proxy account does not exist in Active Directory, users cannot log on to Enterprise Portal.
Microsoft Dynamics AX Setup automates the process of configuring the proxy in various locations on the Enterprise Portal server. Setup
prompts for the proxy credentials and then configures the proxy
credentials in the following locations:
o Windows user groups
o IIS
o Microsoft SQL Server