While evaluating a function in which you specified Y to allow AMB to create
the result field, AMB encountered columns with more than one data type. AMB
cannot correctly create a result field for the function under these circumstances.
Restriction: This topic applies only when the AppMaster Builder AddPack has been installed, and applies only to Windows platforms.
Resolution:
Change the create result field parameter from Y to N and create the result
field yourself. Otherwise, modify the function arguments so that they are
the same data type.