In case you enter a discount code during checkout that doesn't exist or isn't currently active, then you can see the message: “Unable to find a valid discount matching the code entered”.

To use the Overcode coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Overcode checkout system or a customized checkout system that accepts the coupon.

Normally, Overcode will make it easy to use online coupons with scannable barcodes, such as 55% off your entire purchase, in-store. ... You can check your Overcode digital coupons to use In-Store.

Normally, one discount code is only applied for one offer. However, If the users put a vast of items in their cart, it is easy to use one coupon code to purchase items. It depends on Overcode's policy, you can contact Overcode via mail for your reference.

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

Our advice for you to use Overcode Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at Overcode, so take advantage of coupons released on those days to save.