DCB ‑ Discount Code Blocker

Develop by Shopify

$9-$19

/ Month

3 Days Free Trial

Prevents applying discount codes to sale items with compare-at prices.

Block discount codes

Hide discount input

Manual and automatic discounts

About DCB ‑ Discount Code Blocker

Launched Jan 02, 2025

Built by Shopify

Address

Salierring 32, Köln, 50677, DE

Website Support Portal Privacy policy Tutorial FAQ Document

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Description

Block discount codes and discount input field when sale products are in cart.

DCB prevents customers from applying discount codes to items that are already on sale (with a compare-at price). It ensures your sales campaigns stay profitable by blocking additional discounts on already marked-down products. NOTE: when sale products are in cart, it will block discounts for entire order! Free shipping codes will still work in Basic, Advanced and Grow stores due to technical reasons.

Block discount codes for sale products
Hide discount code input from cart and checkout
Block ALL manual and automatic discounts (Shopify plus)
Custom error message in different languages (Shopify plus)
Allow selected discount codes (Shopify plus)

Pros

Prevents discount codes from being applied to already discounted items, protecting profit margins.
Automatically hides the discount code input box to streamline the checkout process.
Compatible with both manual and automatic discounts, offering flexibility in discount strategies.
Reduces customer confusion by ensuring discounts are applied only to eligible items.

Cons

Potentially limited functionality for stores that need more complex discount management solutions.
May not integrate seamlessly with all e-commerce platforms, depending on their systems.
Could lead to customer dissatisfaction if they are unaware that discounts cannot be applied to sale items.

Top Helpful Reviews

Cardo Systems

Sep 29, 2025 on Shopify

This app tries (and largely succeeds) in fixing a major flaw in Shopify which Shopify themselves have been ignoring for years. Must have app, also great support.

Surfprep Sanding

Aug 20, 2025 on Shopify

This app will remove the discount code from the cart for products that have 'compare at price' pricing. However, when I have multiple items in the carts (items that SHOULD be able to be discounted), it does not allow any product to be discounted.

Rock On Ruby

Jul 01, 2025 on Shopify

We used this as a way to prevent customers using discount codes when we ran a sitewide sale. Initially there was a problem pulling through our customers personalisation and text colours. However after notifiying the customer service team they had this sorted within a few hours and it worked perfectly. Excellent customer service and I would highly recommend if you need to prevent others from using discount codes when doing a sale. We will defo use it again for Black Friday.