Total value & condition base value is zero in Rebate

Hi,

I have created a rebate agreement.Then I created order through invoice document.

The net value of order was 10000Rs.The rebate discount is apeparing in the invoice as 2% properly & accordidngly 200Rs is getting updated against the rebate condition type.

Now, when I go to VBO2 to check the agreement, & click on sales volume button,200rs is coming under accruals, but total value & CondBasVal should also have 200Rs, but its zero.

When I click on verification level, it shows invoice no & accruals value, but condition base value is ZERO.

Can anybody let me know why the agreement is not updating these values & updating only Accruals.

Condition base value is appearing in the invoice for the respective rebate conddition type.