Multi Value Selection Based on Data Present in the DB.

Hello Experts,

I have a requirement like User wants to do multiple selection, that multiple selections should be based on the data present in the DB or In the Code List( these data's are present in the ECC system and these will be updated frequently) And I have to save the user selected values for later validation ,please tell me how to achieve this in c4c? and I have red in one blog its near to Multi Value Code List(MVC). But I have not understanding how to do it ?. And also there is no help Document for this .

Please guide me, how to solve this requirement, which technical thing is fit here ???

Thanks in Advance.....

Thanks and Regards

Ravi