This section summarizes some of the most commonly encountered issues when configuring data sources and situations that you should consider at the outset of configuring data sources:
• If attempting to access data sources between different Web applications and across separate ports then you need to test because this is not a supported scenario.
• When using XML and REST Web services, SharePoint list or document library names are case sensitive. For example, if you are attempting to connect to a list named Tasks but enter “tasks” into your query the connection fails.
• If you are accessing XML Web services or creating data sources on a public-facing, or Internet, site then you need to consider ...