I am trying to map the ItemMaster BOD in Graphical Modeler to the input file send in a file connection point. When I am trying to test the mapping, don't see any values in the output pane. Any clue is much appreciated.
There is not a lot of detail included to help much.
It looks like you have mapped a function from the Parts node to the ID node. Parts likely does not have any data so the result would be empty. The Function in place is not revealed so no telling what that is doing. I suggest you review the documentation / training for the Mapper.