one question about posting periods

When creating or changing (T-CODE VL02N ) an outbound delivery, I select Edit -> Post goods issue on one of the overview screens.But the sap show the error message:"posting only possible in periods 2000/01 and 0000/00 in company code HJW1".So my question was how to config to let the posting possible in other periods,such as 2007/09?Thank you.