An FYI About Staples Rewards / Manufacturer's Coupons

Recently a friend of mine visited Staples and wanted to use a manufacturer's coupon and her Staples Rewards to pay for her item.  She was told by the cashier that you could not use both.  She disagreed with the cashier but the cashier insisted she could not use both.

I asked a manager at my local Staples today.  He said you can use both but the Staples Rewards needs to be scanned first because once a manufacturer's coupon is scanned it locks the transaction that nothing else other than a manufacturer's coupon can be scanned after that.  So you would need to use your Staples Rewards then the manufacturer's coupon.  The only way you will be able to use both is if the Staples Rewards is not in an amount equal to or larger than your total.  If it is then your transaction would be paid in full with your Staples Rewards and there would be no balance left for the coupon to be credited to.