A bulk discount code generator for thousands of unique codes at once
A bulk discount code generator solves one specific problem: sending a single discount code to an influencer list or an SMS blast means every recipient can share it infinitely. Stackable's generator creates unique, single-use codes with CSV export, made for exactly that use case.
Merchants ask...
“How do I mass-generate hundreds or thousands of unique, single-use discount codes at once, so each influencer or SMS recipient gets a code that can't be reused or leaked, instead of sharing one code anyone can find and repost?”
A single shared discount code is easy to set up but impossible to control once it's public. It gets posted to coupon sites, reused past its intended audience, and gives no way to tell which influencer or campaign actually drove a given redemption.
How Stackable solves it
Set the discount rule once
Percentage, fixed amount, or free shipping, plus an expiry date and a per-code usage limit.
Generate a batch of unique codes
Specify a quantity from a handful to tens of thousands, each code unique and single-use.
Export straight to CSV
Hand the list to an email, SMS, or influencer-management tool with codes already matched to recipients.
Use it like this
A brand wants 500 unique 20%-off codes, one per creator, to track which creator drives sales.
generate 500 unique codes at 20% off, single use each, export a CSV in a code-per-row format ready to merge into outreach emails.
Each creator's code is traceable to their own redemptions, and a leaked code only ever redeems once instead of indefinitely.
An SMS list of 10,000 subscribers should each get their own single-use 15% code to prevent screenshot sharing.
generate 10,000 unique codes, single use, 48-hour expiry, export a CSV for the SMS platform's merge tags.
Each subscriber's code only works once, so a code shared outside the list is already redeemed and won't work for anyone else.
A brand runs an ongoing Klaviyo welcome flow and does not want to keep exporting fresh CSV batches for it.
sync the batch to a Klaviyo coupon and let Stackable top it up as the flow sends.
Klaviyo pulls a unique code per recipient without a manual export, and the coupon is restocked automatically instead of running dry mid-campaign.
Common questions
Is the bulk code generator live yet?
Yes. Bulk code generation is available on the Growth plan, including CSV export and Klaviyo sync.
How many codes can I generate at once?
Batches run from a handful up to tens of thousands, which covers influencer and SMS campaign sizes. Large batches keep importing in the background rather than making you wait, and the Codes page tracks how much of your store-wide code capacity is used.
Does each code really only work once?
Yes when you set the usage limit to one, which is how single-use codes are handed out. The limit applies to each code individually, not to the batch, so every recipient gets exactly one redemption. Raise the limit if a campaign needs more.
Does the CSV export work with my email or SMS platform?
Every batch has an export link that downloads a plain CSV, one code per row, which merges into virtually any email, SMS, or influencer-management tool. Klaviyo has a direct sync instead, so those flows pull unique codes without any export at all.
Sources
- Automatic and code discounts are distinct methods with different rules - About discounts
Related features
Discount Stacking
How to stack discounts in Shopify comes down to settings the platform hides by default: every discount belongs to a class (product, order, or shipping), and whether two discounts combine is decided per offer, per class. Stackable puts those combine switches on every offer, so a volume tier, a spend goal, and free shipping add up exactly the way you configured them, every time.
Scheduled Sales
Shopify scheduled sales fail two ways in the wild: campaigns that silently never start, and live campaigns with no pause button. Stackable's scheduler runs on the same reliability guarantee as its checkout math, and pausing takes effect storefront-wide in under a minute.
Volume Discounts
Shopify volume discounts, natively, pool every product in a collection toward one shared threshold. Stackable's tiers count the exact product, and only the variants you choose, so a chair buyer doesn't get a discount by adding three unrelated items to the cart.
Examples using this
Copy-ready setups built on this feature, each with the exact settings and a video.
Install Stackable and start with Bulk Discount Codes
Every offer type runs on the same server-side engine, so whatever you combine, the checkout math holds.
Free plan available. No card required.