I have two fields that I need to concatenate together but I need to add zeros so one said has 4 digits and the other side has 2 digits. Both separated with a hypen. For Example, 0024-14.

This is the code I have written am I close???

Left([ACONTROL], 4, "-") & Right([ASECTION], 2)

So, it would be field ACONTROL with 4 digits and ASECTION with 2 digits.

OMG you might be using an older version of Arcmap and not Python 2.7 or above

try this

"00{0}-0{1}".format(int(!ACONTROL!)),int(!ASECTION!))Notice the {0} instead of {} and {1} instead of {}

grief...if that is it...note to both of ourselves...arcmap and python version are needed