Hi,
What do you want to achieve, with ZERO or without ZERO? Are you using same infoobject in your cube?
If you want your object to have leading zeroes, then you need to have the ALPHA conversion..Else, you need to manually add the leading zeroes when loading OR you may add a routine and use the FM CONVERSION_EXIT_ALPHA_INPUT to have leading zeroes..
Regards,
Loed