Inspection plan - Valid to date

Question

Dear gurus,
Iam using change number to create Inspection plan. System is displaying always Valid to date as "31.12.9999". But as per business requirement of the client, validity period is 3 yrs. How can i change the date.
1)     Can i cahnge at change number level?
2)     or At inspection plan level?
Iam giving you the details of the field at Inspection plan level.
Transaction: Qp01
screen no: 1200
screen Field name: PLKOD-DATUB 
Program name: SAPLCPDI
Package: CP
Pls guide me how to get valid date as 3 yrs plus valid from date.
thanks and regards
Venkat. V

Answer 1

Hi,
For change number effetivity we can think of another alternative.
1) Create one change number and create a inspection plan with group counter 1.
2) Create another change number and create another inspection plan with group counter 2.Second change number   
     validity should be from 01.01.2012
3) When a goods receipt is done system automatically assigns the inspection plan with group counter 1 till 31.12.2011.
4) When a goods receipt is done on 01.01.2012 system will create the inspection lot with status created as there are
     2 inspection lots from 01.01.2012.
5) Go to the first inspection lot and change the status to 1 and assign second inspection lot which is valid from 01.01.2012.
CSN