Hi 

I am new to EPiServer Commerce, when my collegue shows me how business foundation objects are created and stored in the db, I notice that each custom object is mapped to individual table with a default naming rules e.g. cls_{custom object name). 

However, the query using the business manager seems too odd to me (may be I am very LINQish), and my collegue told me the query is not cached. 

My question is can I use EF to query the those custom objects and perform the CRUD directly? Would that cause any problem? 

Thanks