Black Friday means freezing your code. But what about your data?

Maddie Weatherill

October 15, 2026

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4 minutes

Campaign Strategy

Search & Discovery

Customer Experience

A code freeze stops changes to how your store is built. But your products, prices, stock and discounts keep changing right through peak. Here’s how to keep them in check.

At a glance

Every November, experienced merchants freeze their store’s code the week before Black Friday. No theme changes, no new apps, no experiments. It’s a smart habit. But it only protects how your store is built, not what’s in it.

Your products, prices, stock levels and discounts keep changing right through peak. That’s where most things went wrong for merchants in 2025. Before your freeze starts, list everything in your store that can change without your approval. Check what runs together, and get your product data in shape so nothing changes at peak without your yes.

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Every year, experienced merchants freeze their store's code a week before Black Friday. No theme changes, no new apps, and no experiments. They don't do it because things are going well and there's nothing more to be done. They do it because they know how easily things can break at peak.

Every forecast this autumn says AI is changing how people shop, with more shoppers than ever using AI assistants to find and compare products before clicking through to stores. Adobe expects AI traffic to US retail sites to increase by 130% between 1 November and 31 December, compared to the same period last year.

So while a code freeze guards your site's foundation, the rest of your store, including your product data, prices, stock levels, and discounts, cannot be frozen. This leaves the part of your store that changes the most completely unguarded during the busiest shopping weekend of the year. Active management and validation of your data is therefore critical to avoiding costly disruptions.

What a code freeze covers, and what it doesn’t

A code freeze is a simple rule. For a set period before a big sale, it means nobody changes how your store is built. This might already be something you do.

In practice, a code freeze means:

No changes to your store theme
No new apps installed on your store, from the Shopify App Store or anywhere else
No experiments on the live store, like A/B tests, new page layouts or changes to your checkout

What a code freeze doesn't cover is your product data. You'll still be updating products, prices, stock levels, discount codes and collections all through Black Friday and Cyber Monday. You have to. That's how you run the sale.

Why a lockdown on your code isn’t enough

Problems at peak rarely have just one cause. They happen when several things change at the same time, and nobody has checked how they work together.

In September 2026, a Shopify Community thread asked: "What's the one thing that broke in your store last Black Friday Cyber Monday (BFCM)?" It got 32 replies from merchants looking back on BFCM 2025. The answers that came up most were:

Inventory sync lag (the most common answer)
Support volume
Shipping
Abandoned-cart emails firing at the wrong moment
Discounts stacking

One merchant lost money on orders when three discounts were applied at once: customers paid less than the products cost the merchant to make or buy. Each discount made sense on its own, but nobody checked the three together. In another thread, a merchant showed how quickly stacked discounts ate into their profit. A $40 product that cost $24, had a 25% automatic discount stacked on a 25% code, leaving about $1 a unit.

Notice what isn’t on the above list: broken themes or code updates. Every single one of these costly mistakes happened because nobody checked how active data and automated tools interacted with increased traffic. At peak, the real risk isn’t what’s frozen. It’s everything else running unchecked.

Five checks for everything you can’t freeze

Preparing for the parts you won’t freeze on your store doesn't need to be a big project. Set aside some time this week and make a list of everything on your store that can change without a person approving it. Then go through each item on that list and decide whether you trust it to keep running on its own during BFCM.

Write down everything that runs on its own. Apps that update products or prices, automatic discounts, scheduled emails, inventory syncs and any automation rules.
Check what runs together. Which discounts can stack? Test the combinations, then work out your margin on the worst case.
Decide what you trust. For each item, keep it, switch it off for peak, or add a check before it goes live.
Check your product data, then export it. Look for products that aren’t in collections, ranges missing a size or colour, and missing category or tag data. Fix what you find, then keep a copy from before the sale.
Communicate with your team. Keep communication open with your team about the tools that aren’t getting frozen to avoid the risk of things going wrong.

That’s a lot to check by hand, especially in the busiest weeks of your year. The good news is you don’t have to do it all yourself.

How to keep your product data in check

As your product data stays active right through peak, small problems like products falling out of collections, missing tags, or outdated categories can slip through the cracks. And nobody notices until it starts costing you sales. That’s why your product data belongs on your checklist too.

This is where Clearer's Catalog Agent comes in. It effortlessly scores the health of your catalogue, spots what's broken (like missing tags or gaps in product details), and shows you how to fix each one. You approve or skip each one, so nothing changes without your yes.