Factory calendar

Hi,

While iam creating process order using T-code COR1, iam entered total qty 150 L ,here scheduling type : Backwards

and i entered  the finish date 12.07.2012. can also please look into the snapshot.

then iam getting below error message  :

Date 12.07.2016 is earlier than the validity period of the factory calendar

Message no. CO033

Procedure

Enter a date which lies withing the validity period of the factory calendar.

but I have not maintained the factory calendar in the resource(capacity).

Can you please resolve the issue.

Regards,

Sree.