Cachelookup property

Hi,

Can any one tell me the mail difference between Found , FoundAndEmpty with example? and at what situation I have to use it.?

Thanks

You can find answers to such questions in AX documentation, therefore it would be wise to look there. Here is a direct link to the page explaining CacheLookup property (among other things): MSDN: Single-record Caching [AX 2012].