The Bed Bath & beyond website accepts coupons that read Valid In-Store or Online and are not expired. In-store only coupons cannot be used for online purchases. If you choose to place an order online, you can take the invoice, coupon, and credit/debit card used to make the purchase to any store to be credited for the discounted amount.
If you have an in-store coupon that you would like to use on an item that isn't available in your local stores: you have the option to visit your local store to place the online order. Payment can be processed at the register, so you will be allowed to apply your coupon.