Sounds like maybe somewhere, the item code column's data type is being automatically assumed to be numeric based on the first x number of rows and it is thinking the alphanumeric values are failing the numeric check and replacing it with null. 

May need to poke around and see if you can specify the data type somewhere.

Another thing to consider, are you using any outer joins to another table that may not have the alphanumeric values thus returning columns from one table but not the other where a match is not found?

I am not using outer joins. I tried every data type in the properties tab and received the NULL return every time:

Hi, I can't replicate what your screen shots are depicting. This is a Sage Intelligence connector? How is the connector set up? Excel ODBC?

Is the workbook's column type set to Text?

What happens if you throw an alphanumeric value as the first data row (row two) in the workbook?

EDIT: These questions were meant for wtcrockett to rule out the possibility that he might have the column in workbook set up as a number with zero decimal places and left justification. It might appear correct in the workbook but when SI is reading it, it might be respecting the data type assigned to the column.

Is the workbook's column type set to Text?

What happens if you throw an alphanumeric value as the first data row (row two) in the workbook?

EDIT: These questions were meant for wtcrockett to rule out the possibility that he might have the column in workbook set up as a number with zero decimal places and left justification. It might appear correct in the workbook but when SI is reading it, it might be respecting the data type assigned to the column.

Hi David, My workbook's column type set to general. It is single table ODBC query from CI_Item saved as an XLS. The XLS is brought into Sage Intelligence via a custom connector via ODBC Excel Connection. 

I have tried number, general, and text formatting in the excel file. Same result.