Printing issue in vf02

Hi Expert,

I have a issue, When i print in vfo2.

In exnum it print 10 digit but i want to print only last 5 digit.before 2 days ago its working fine. but after changing financial year this problem occur from last 2 days. so please suggest me what should i do.

Print as 2014-15/B-37/S2600000001. but i want to print this as 2014-15/B-37/S00001.

Given is the attachment .