Discount codes don't stack. If you have 52% off discount, they can't also use a "free shipping" coupon since Only one discount at a time can apply to a single order at the Macy's site.

Of course not, most coupons may be used only by you when you received them directly from Macy's. As the Macy's coupon includes your User ID, it cannot be resold or transferred in any way.

To avoid this problem, you should check out carefully Macy's promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

Usually, Coupon Stacking is not allowed at Macy's. However, the store will surely give out notice if available.

All deals from Promotion Programs of Macy's are collected here. For each certain occasion, its coupons will be on the top of the coupon list, and surely they always come with an expiry date.

It is hard to see a Sitewide Discount of 50% from Macy's on normal days. It's easier for you to shop on federal holidays or important days of the year. New Year’s Day, Thanksgiving, Christmas, Military Day...are recommended.