Allowing special characters in bw

Hello Friendz,

I have loaded transaction data in psa and infocube.

For some values in R/3 its showing following error.

<b>Value '0000cj1000 ' (Hex ' ') of char. 0REF_DOC_NO contains unauthorized characters.</b>

I tried to solve this using rskc,but still i didn't get the solution.

How can i get rid of this?

Plz,help me for this,its really urgent.