[Koha] Destiny to Koha Marc Import - How to get barcode information in the right field in Koha?

I have uploaded an export of Destiny in my test Koha database. I cannot search for the bar code when checking out a book. The bar code information is in 852 $p. I can search and find the bar code using search catalog function. How do I map 852 field/P sub-field to Koha database to populate the bar code field? I have created a new framework for Books. I also created a Keyword to MARC mapping. I put in bar code to 852 sub-field P.  After I import the MARC records from Destiny, Koha does not register an Item Type on the Holdings tab. So how do I created a book from the marc record? Not sure if I am heading in the right direction. Any advice is appreciated. Joseph Lamb