Post mass addition Issue

Hello Experts,

I am done with updating all the assets in the prepare mass addition from now when i try to run the post mass addition i get the error of Mass addition Program Parameter can not see the Book but in the Mass Additions Posting Report i can see the book. any idea might help.

also missed to add another point if possible at the prepare mass addition there a field with the transaction type but no updatable having a value of Future add can the post take place when this field is not NULL and why i am having this value based on what ?