0PRODORDER in 0CO_PC_01 & 0CO_PC_02

Hi,

I got a given flat file extracted from the client thru RSA3 for 0CO_PC_01 & 0CO_PC_02,

I noticed the 0PRODORDER has constant value = 100000000000 for all records. By not familiar with CO data I am wondering is it correct ? Is it because some fact behind the production order is not populated ?