Value contract - Need restrcition of amount in PO for contract line item

Question

Hello Guru,
I want to create a single value contract (WK) for multiple years .. say 3 years with target value as 450K USD with three line items for each year of value 150K USD.  I would like that when buyers create a PO system should not allow them to create release purchase order for each line item more than 150 K for the year. Can somebody tell me how to configure that?
Here is my current config example :
Contract #ABC - Target value 450 with validity date 1/1/11 until 12/31/13
Line item 1 - 150 K
Line item 2 - 150 K
Line item 3 -  150 K
Now when I create PO with respect to contract#ABC line item 1 - system allows me to create PO with more than 150 K but gives me error message only if I exceed more than 450 K (because message 06/042 is error in config).
The requirement is to create a single contract for the vendor. Can somebody help me to figure out the way to restrict PO amount by each year limit by standard or custom configuration?
Thanks, Sachin
Edited by: sachindubey on Feb 29, 2012 10:15 PM

Answer 1

Hi,
As far as I remember it was simple logic!
Something like
Goto EKPO select KONNR ;
If  KONNR != blank (Not equal to blank)
Do not allow to change condition type u201CPB00u201D
Also incorporate addition date check for your need