Sitewide sales are a double-edged sword. Done right, they drive a surge in revenue and move inventory fast. Done wrong, they train your customers to wait for discounts and erode your margins over time.
The difference isn't the discount percentage — it's the execution. A sitewide sale on Shopify needs more than reduced prices. It needs visibility, urgency, and a structure that keeps shoppers moving from browse to buy before the timer runs out.
This guide walks through how to run a Shopify sitewide sale that converts, using on-site tools that make the difference between a forgettable promotion and a genuine revenue spike.
Decide on three things before you touch your Shopify settings.
Your discount type. A flat percentage off sitewide (e.g. 20% off everything) is the simplest to communicate. Tiered discounts (spend $50, save 15% / spend $100, save 25%) are more complex but push average order value higher.
Your sale duration. Short sales — 24 to 72 hours — create stronger urgency than week-long promotions. The shorter the window, the harder the countdown timer works for you.
Your goal. Is this a clearance event? A month-end revenue push? A new customer acquisition campaign? The goal shapes what to feature and what to promote externally.
In Shopify admin, go to Discounts and create a new automatic discount. Choose "Percentage off" and apply it to all products. Set your start and end date. Automatic discounts apply at checkout without requiring a code, which removes friction for first-time customers.
If you're running a code-based promotion for email campaigns, create a discount code and display it prominently in your announcement bar.
Your sale needs to be visible the moment a visitor lands — before they scroll, before they find a product, before they decide whether to stay. An announcement bar handles this.
Set it up with Boolean Conversion Kit's announcement bar widget. Write clear, specific copy: "Sitewide summer sale — 25% off everything. Ends Sunday at midnight." Don't make customers guess what's on sale or when it ends.
A countdown timer answers the question every browser silently asks: Do I need to decide now?
Add a countdown timer to your announcement bar and to your product pages. When customers see the same timer at the top of every page and again on the product they're considering, the urgency compounds. Set the exact end time — not a rounded number, but the real deadline. "23 hours, 47 minutes" feels more authentic than "24 hours."
Sitewide discounts reduce margins per order. The antidote is a higher average order value. A free shipping bar shows customers exactly how much more they need to spend to earn free shipping — which nudges them toward adding one more item.
Set the free shipping threshold slightly above your current AOV. If your average order is $65, set the threshold at $75 or $80. You'll move more units and offset some of the discount cost with higher basket sizes.
When your store is active — real sales happening, real customers buying — show it. Boolean Conversion Kit's sales pop notifications and sold counter let visitors see that others are buying right now. That social proof reinforces that this sale is worth acting on, and it reduces hesitation for new visitors who aren't sure about your store yet.
If you have products with limited inventory, add a stock countdown widget to those product pages. "Only 4 left at this price" creates item-level urgency on top of the sale-level urgency. Customers who were on the fence about a specific product are more likely to add it to cart when they see stock running low alongside a ticking sale timer.
Track your conversion rate during the sale versus your normal baseline. Track average order value — if it dropped significantly, your free shipping threshold may need adjusting next time. Look at your bounce rate: if you drove traffic that didn't convert, your offer copy or on-site experience needs work.
And stick to your end time. If customers visit after the timer expires and the discount still applies, you've trained them to ignore future urgency signals. Run the sale like you mean it — then end it.
The announcement bar, countdown timer, free shipping bar, sold counter, and stock countdown described here are all available in one Shopify app. Get Boolean Conversion Kit on the Shopify App Store →
