Quantity Variance - Payable Invoice

Hi

We are doing a 3 way match and have a tolerance of $50 setup. When we have a price variance and within tolerance, the amount is getting charged to correct price variance account, but when we have a quantity variance but within tolernace , the amount of variance is not getting populated in the variance account. It hits the accrual for the full amount.

Example:

PO

Item #1  QTY 100 x Price 10 = $1,000

INVOICE 

Item #1 QTY 110 x Price 10 = $1,100

Tolerance is set to $150

I am expecting this entry

AP Accrual A/c Dr      $1,000

Variance A/c Dr             $100

      AP Liability A/c Cr      $1,100

What am I missing?