According to Sugar Cloud restriction, I want to know if we can, from a Sugar Cloud Instance, process a file (XML file) hosted every day on a remote server of my customer ?
Yes you can....
As an example I added a small scheduler job which reads the exchange rates for Euros from an XML file provided by the ECB server. It's just a very simple example which should show the principle of operation. For sensitive customer data a more complicated CURL dialog with authentication is recommended.
Principal Solution Architect – Professional Services, EMEA
SugarCRM Deutschland GmbH