Merchant Center Promotions: Drive Clicks with Special Offers
Merchant Center promotions are one of the most underused features in Google Shopping. They display directly in Shopping ad cards as “Special Offer” tags, strike-through pricing, or “X% off” badges — visually distinguishing your products from competitor listings without an additional dollar of ad spend. CTR uplift from properly configured promotions is typically 10-25%; conversion uplift another 5-15%. Yet most ecommerce accounts either never use them or use them only at holiday peaks.
This guide walks through the promotion types, the setup process, eligibility rules, and the patterns we see consistently driving the biggest performance lift.
What Merchant Center promotions actually do
Merchant Center promotions create promotional overlays attached to your product listings in Google Shopping. The user sees, in a Shopping card:
- A “Special Offer” badge
- Strike-through original price + sale price
- A “X% off” or “$X off” label
- Free shipping or other offer disclosures
These appear automatically in Shopping ads, Free product listings, and the Shopping tab — without changing your underlying product feed price.
Google’s reported data: products with active promotions see 5-25% CTR uplift and 5-15% conversion uplift on average vs. equivalent products without.
Promotion types available
In 2026, Merchant Center supports these promotion types:
1. Discount (percentage off)
- “20% off your order”
- “15% off select products”
2. Discount (amount off)
- “$25 off your order”
- “$10 off when you spend $50”
3. Free shipping
- “Free shipping over $50”
- “Free express shipping on selected items”
4. Free gift
- “Free [item] with purchase”
- “Buy 2 get 1 free”
5. Buy X get Y
- “Buy one get one 50% off”
- “Buy 2 get 1 free”
6. Other promotions
- “Buy now, pay later” disclosures
- Special financing offers
- Free returns (in some markets)
Eligibility requirements
Before submitting a promotion, your account needs:
- Active Merchant Center account
- Country eligibility (promotions are gradually rolling out; check current supported countries in your account)
- Promotions program enabled (Settings → Promotions program → Enable)
- Promotion meets policy requirements (more on this below)
- Promotion redemption mechanism that matches the offer (coupon code or automatic at checkout)
Setting up a promotion: step-by-step
Step 1: Enable promotions program.
In Merchant Center → Settings → Programs → Promotions → Enable.
Step 2: Create the promotion.
Merchant Center → Marketing → Promotions → Create promotion.
Required fields:
- Promotion ID: unique internal identifier (e.g., “summer-sale-2026”)
- Title: shopper-facing name (max 60 characters) — “20% Off Summer Collection”
- Country: where the offer applies
- Language: shopper language
- Promotion type: from the list above
- Promotion effective dates: start and end times
- Promotion display dates: when the badge shows (often slightly later than effective)
- Product applicability: all products, or specific products by ID or item group
- Redemption channel: online, in-store, both
- Redemption code (if required): coupon code shoppers enter at checkout
Step 3: Submit via UI, feed, or API.
For 1-3 promotions: UI works. For 5+ promotions managed programmatically: use a promotions feed (Google Sheets, XML, or API).
Step 4: Wait for approval.
Initial approval: 24-72 hours. Subsequent changes: faster.
Step 5: Verify display.
Search for one of your products in Google Shopping. Confirm the promotion appears in the card.
Policy requirements that trip up most accounts
Google’s policy rules for promotions:
1. The discount must be real. Don’t inflate the “before” price to make the “after” look better. Google validates against scraped product page history.
2. The promotion must match the product page. The “20% off” promotion must actually apply at checkout when shoppers redeem.
3. Codes must work. If you require a coupon code, that code must successfully apply at checkout. Google tests.
4. No deceptive overlays. Promotion images shouldn’t conflict with the underlying product images. No “SALE!” text overlaid on product photos.
5. Effective dates must be reasonable. Promotions running for 6 months are flagged as “not really promotions.” Use for actual time-bound offers.
6. Promotion must benefit shoppers. “Buy 2, get $0.01 off” is technically a discount but won’t pass review.
The promotion types that drive biggest CTR lift
Based on patterns we see across accounts:
Free shipping promotions: largest CTR uplift in most categories (15-30% lift). Free shipping reduces friction at checkout consideration moment.
Percentage off (15-30% range): strong CTR. Shoppers visually parse ”% off” as the universal sale signal.
$X off above threshold: moderate CTR. Better suited for higher-AOV categories.
Buy X get Y: medium CTR but high conversion lift. Drives larger basket sizes.
Free gift with purchase: depends on the gift’s perceived value. Sometimes very strong, sometimes meh.
When to run promotions
Strategic uses:
1. Seasonal launches. Black Friday, holiday season, summer collection. Standard but works.
2. New product launches. “20% off launch week” creates urgency for new SKUs.
3. Slow-mover clearance. Clear stale inventory with promotions targeted to those SKUs.
4. Competitive pressure. When competitor pricing drops, a temporary promotion can defend share.
5. Always-on free shipping above threshold. Often more effective as a permanent feature than a “promotion” — but you can still apply the Merchant Center promotion mechanic to display it as a badge.
6. Customer match audiences. Layer with audience signals — show the promotion only to first-time visitors or cart abandoners.
Common promotions mistakes
1. Setting up but not maintaining. Promotion ends but you don’t disable in MC. Stale promotion data risks disapprovals.
2. Insufficient coverage. Creating a “20% off all” promotion but applying to only 50 SKUs out of 500. Shoppers see inconsistent badging across your catalog.
3. Confusing or contradictory promotions. Three overlapping promotions on the same SKU. Picks the wrong one for display. Simplify.
4. Discount that doesn’t actually work at checkout. Promotion says “20% off” but the coupon code requires $100 minimum, not in the promotion text. Google catches this within days.
5. Running promotions without measuring. Promotion ends — but did it actually lift CTR? Conversion? AOV? Track to see whether to repeat.
6. Always-on promotions that lose meaning. A perpetual “10% off everything” stops creating urgency. Reserve for specific calendar moments.
Measuring promotion impact
To isolate promotion impact:
1. Pre/post comparison. 14-day pre-promotion baseline vs. 14-day promotion period. CTR delta, conversion rate delta, AOV.
2. Side-by-side A/B (if you have variant tools). Run promotion on half of products in a category; not on the other half. Compare.
3. Search Console / Shopping reports. Check Shopping campaign performance during promotion period.
4. ROAS calculation. Did the discount erode margin enough to offset CTR/conversion gains? Sometimes promotions lift volume but reduce net contribution.
Most accounts find well-targeted promotions are net positive even after factoring in the discount cost. Bad-targeted promotions can be neutral or negative.
A 90-day promotion strategy framework
Quarter planning for promotions:
Week 1: Plan. Identify 3-5 promotion windows for the quarter (key calendar moments, slow-mover clearance, new launches).
Weeks 2-4: Configure promotion 1 in advance. Set effective dates 3-5 days in the future. Allow time for approval and pre-promotion testing.
Weeks 5-8: Run, measure, learn from first promotion. Document what worked.
Weeks 9-12: Run promotions 2-3 with iteration based on learnings.
End of quarter: review which promotion types drove best results. Plan next quarter accordingly.
Free Listings + promotions
A critical synergy: Merchant Center promotions also display on Free product listings (the unpaid Shopping tab placements). This means promotion configuration earns CTR uplift on free traffic AND paid traffic.
If your account drives 20-30% of Shopping traffic from Free Listings (typical for accounts with good feeds), promotions amplify that free traffic at zero additional cost.
Integration with Shopping campaigns
Promotions don’t require campaign-level configuration. Once created in Merchant Center, they automatically apply to:
- All Performance Max for retail campaigns
- All Standard Shopping campaigns
- All Free Listings
- YouTube Shopping ads
This is the magic — set once at MC, apply across surfaces.
Frequently asked questions
Can I have multiple promotions on the same product? Yes, but Google displays only one in the Shopping card. Usually the most aggressive or most generic. Plan to avoid conflict.
How specific can promotion targeting be? You can target by:
- All products
- Specific product IDs
- Item group IDs
- Product types (from your feed taxonomy)
- Brands
Do promotions work for B2B Google Shopping (Manufacturer Center)? Different program. Manufacturer Center has more limited promotion support than Merchant Center retail.
How long can a promotion run? Practically: up to 6 months. Beyond that, Google flags as “ongoing” rather than “promotion.” Use a series of shorter promotions instead.
Will promotions affect my Quality Score in Google Ads? Indirectly. Promotions lift CTR; higher CTR → better expected CTR → better Quality Score.
Merchant Center promotions are a 30-minute setup that delivers measurable CTR and conversion uplift for free. The accounts that aren’t using them — and that’s most accounts — are leaving easy performance on the table. Audit your account this week; if you don’t have an active promotion running, set one up.