5 merchandising rules that lift sales on Shopify
Your collection's order is doing sales work, and a default sort does it badly: it ignores whether a product is in stock, what it earns you, and what shoppers are buying. Five rules fix that. Bury sold-out items, boost bestsellers, surface new arrivals that are in stock, pin the campaign hero, and demote slow movers. Run them automatically and the order stays right.
Open your best collection and look at the first row, the products a shopper sees before scrolling. Sorted by "Featured" or "Date" or whatever was selected months ago, it shows what that sort surfaces, not what sells. You feel it every time you wonder how to keep out-of-stock items off the top, or bestsellers on it, without dragging products by hand. The order is a sales decision. This post turns it into five rules instead of a guess.
Why does a default collection sort cost you sales?
Because the default sort optimizes for nothing you care about. "Alphabetical" sells by the first letter of a title. "Date" sells whatever you added last. "Manual" sells whatever you last dragged into place, until your catalog outgrew the dragging. None of them know which products are in stock, which carry your margin, or which are selling this week.
So the prime real estate, the first screen of a collection, gets handed to products by accident. A sold-out item greets shoppers because it was added first; your actual bestseller sits three rows down where fewer people scroll. That is the enemy. Not sorting, but a default that ignores stock, margin, and what is actually selling, handing your best shelf space to whatever the sort surfaced rather than what earns.
Rule 1: Bury sold-out products
Push out-of-stock items to the bottom of the collection, automatically, by live inventory. A shopper who lands on a wall of "sold out" assumes the whole store is picked over and leaves, even when your in-stock products are sitting just below.
This is the most-asked merchandising question on Shopify, because the platform "only sorts within the same page" and has no native switch to keep sold-out items down across the whole collection. The rule version demotes anything at zero stock and re-evaluates on restock, so a product that comes back climbs back up on its own. Set once. It runs forever.
Rule 2: Boost your bestsellers
Lift the products that are actually selling to the top of the collection. The bestseller earns the first row because it converts the warmest, and putting it where the most eyes land compounds that.
Define "bestseller" by a real metric, not a guess: units sold, revenue, click-through, or most-viewed, over a window you choose, like the last 7, 14, or 30 days. A short window keeps the order current with what is selling now; a longer one smooths out a fluke week. The rule applies the same way on collections and search results, so a category bestseller can lead its search too.
Rule 3: Surface new arrivals that are in stock
Lead with what is new, but only if a shopper can buy it. New arrivals pull repeat visitors who have seen the rest, and a fresh first row gives a returning shopper a reason to browse again. The catch most stores miss is the "in stock" half.
A "new arrivals" sort that surfaces a just-dropped product already sold out spends your freshest real estate on disappointment. The rule version boosts recent products and gates on inventory, so the new row shows only what ships today. New, and buyable.
Rule 4: Pin the campaign hero
When you are running a campaign, pin its hero product to position one so the order matches the promotion. You sent the email, you bought the ads, and the collection should agree with them the moment a shopper arrives.
Pinning assigns a position rather than dragging a card, so the hero sits at slot one across the whole collection regardless of how the rest is sorted, and it holds there for the run of the campaign. When the campaign ends, unpin it and the collection falls back to its rules. The top of the page is yours to place on purpose; the depth sorts itself.
Rule 5: Demote slow movers
Send the products that are not earning toward the bottom, so the first rows are not spent on stock that does not sell. Margin matters here too: a high-margin product that moves deserves better placement than a low-margin one that barely does.
Demotion is the quiet counterpart to boosting. You demote by the same metrics in reverse, low units, low click-through, low views, or by hand for a product you have a reason to bury, like an end-of-line item you are not reordering. The result is a collection where the front works for you and the long tail sorts by what is actually happening, not by alphabetical accident.
How does Sledge run these rules automatically?
Sledge Merchandising runs all five as rules across the whole collection and your search results, not page by page. You boost or demote whole groups by vendor, tag, price, or live inventory, or by a behavior metric like best-seller, most-viewed, or click-through over the last 7, 14, or 30 days. You pin specific products to specific positions by hand, mixed with the rules.
So the order maintains itself. Sold-out items sink and climb back on restock; bestsellers rise as they sell; new arrivals lead while they are fresh and in stock; the campaign hero holds slot one until you release it. You preview the whole collection, across pages, before you publish, so you see the order a shopper will see instead of guessing. And because Growth Intelligence reads what each arrangement earns, you can keep the rule that sells more rather than the one that felt right. The full walkthrough is in the merchandising guide.
The merchandising rules checklist
- Bury sold-out products by live inventory, with auto-climb on restock.
- Boost bestsellers by a real metric (units, revenue, click-through) over a chosen window.
- Surface new arrivals, gated on in-stock so shoppers can buy what they see.
- Pin the campaign hero to position one for the run of the promotion.
- Demote slow movers and weigh margin, not just velocity.
- Preview across pages before publishing, and keep the arrangement that earns more.
Related reading
Merchandising · The Shopify merchandising guide · How to push out-of-stock products to the bottom on Shopify · Shopify broke manual collection sorting. Here's the fix
Questions, answered
How do I automatically sort out-of-stock products to the bottom on Shopify?
Natively you cannot across a whole collection, because Shopify sorts only within a page. A merchandising rule that reads live inventory demotes sold-out items across the entire collection and re-promotes them on restock, so you set it once instead of hand-sorting.
How do I show bestsellers first on a Shopify collection?
Use a rule that boosts products by a real metric, like units sold or click-through, over a window such as the last 7, 14, or 30 days. In Sledge the same boost applies to search results, so a category bestseller can lead its search too.
Can I combine automatic rules with hand-picked order?
Yes. Pin the few products you have a deliberate reason to feature to specific positions, and let rules order the rest by inventory, metrics, or attributes. The top of the collection stays yours; the depth sorts itself.
Will rule-based ordering look generic?
Only if rules are all you use. Pinning your chosen heroes on top and letting rules handle the volume underneath is more deliberate than a single default sort, and previewing before you publish keeps the final say with you.
Let your collections sell, not just sort.
Install free. Run all five rules across every collection and your search results, and let built-in Growth Intelligence show which arrangement earns more, with dollar amounts attached.
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