Subscription Box Fulfillment and Kitting
Send us your box components and we build each box to spec in Austin, Texas, then ship it to your subscribers with tracking synced back to the order in your store. Pricing starts at $7/order. There is a $750/month minimum: if a month's orders bill under $750, you pay only the difference. That is roughly 100 shipments a month at the lightest weight (0.5 lb or under).

Subscription box fulfillment from Austin, Texas
Yes, a Texas 3PL can run your monthly box. Simpl receives your components, builds every box to your spec, and ships the run from one warehouse in Austin. Orders received before 12pm CT ship the same day via UPS, USPS, or FedEx, starting at $7/order.
Austin sits near the middle of the country. Ground shipments leave from central Texas rather than one coast, so subscribers in California and subscribers in New York are a similar distance from the warehouse. For a box that ships on a fixed date every month, that evens out delivery timing across your list instead of leaving one coast noticeably behind the other.
How subscription box kitting works at Simpl
- Send components in bulk. Ship each component SKU to the warehouse: the products, the box itself, tissue or crinkle paper, inserts, and any branded packaging. We receive and count inventory within 1 to 3 days of arrival, so plan inbound freight to land ahead of your assembly window.
- Give us the box spec. Tell us what goes in each box variant and how it is packed. That means the item list, where the insert sits, what wraps the product, and which box a tier or variant uses. If the insert changes every month, send the new version with that cycle's components so the old one is never packed by mistake.
- We assemble each box. Kitting and assembly is a standard Simpl service. The team can pre-build the run ahead of the ship date or assemble boxes as orders come in, whichever fits your cycle.
- Orders release and ship. When your subscription platform generates the cycle's orders, they flow into our system, get picked with double-scan verification, and ship via UPS, USPS, or FedEx with a tracking number. Orders received before 12pm CT ship the same day.
- Everything else ships from the same shelves. Gift orders, one-off shop purchases, and replacements between cycles ship from the same inventory, so the warehouse that builds your box also handles your store orders.
Planning around the monthly surge
A subscription run is not a steady trickle of orders. Most of a month's volume lands in a window of a few days around the ship date, then drops to almost nothing until the next cycle. The work that makes that window go smoothly happens before it opens. Components, boxes, and packaging have to be received and counted before assembly starts, so share your cycle calendar with your account manager and land inbound freight with the 1 to 3 day receiving turnaround in mind.
The 12pm CT cutoff is a per-order rule: an order that reaches us before noon ships that day. It is not a commitment that an entire monthly release clears in one afternoon, and we do not publish a per-day throughput number. Pre-building boxes ahead of the ship date, one of the two assembly options above, takes the kitting work out of release day.
Accuracy holds through the surge as well. Simpl ships at 99.99% order accuracy, and when we make a mistake on an order, we cover the cost to make it right, including return shipping and re-fulfillment.
Component SKUs and receiving ahead of the window
A box with six items is six inbound SKUs plus the box, the insert, and the packing material. Every one of them has to be received before assembly starts, and one late component holds the whole run. Simpl receives inventory within 1 to 3 days of arrival, counts it against your shipment, and flags shortages or damage, and the counts post to real-time inventory visibility in the software so you can see which components are in and which are still in transit.
Storage is billed by warehouse storage type, small bin, large bin, shelf, or pallet, so bulk components waiting a few weeks for assembly are charged by the space they take up.
Which subscription platforms connect to Simpl
Simpl integrates natively with Shopify, Shopify Plus, BigCommerce, WooCommerce, and Squarespace, plus Amazon, Walmart, eBay, Etsy, and TikTok Shop for marketplace orders.
Most subscription boxes run on Shopify with a subscription app such as Recharge. Those apps create each renewal as a regular order in your Shopify admin, so renewals reach Simpl through the standard Shopify integration with no separate connection to set up.
Standalone subscription platforms such as Cratejoy and Subbly are not on Simpl's native integration list. They connect through Simpl's open API, so name your platform when you request a quote and we will confirm the setup.
From backer rewards to a recurring box
Many box businesses start as a Kickstarter or Indiegogo campaign and turn into a subscription once the backer rewards ship. Simpl handles both stages from the same warehouse. Crowdfunding fulfillment covers importing your backer list, kitting rewards by pledge tier, and shipping the campaign run. When the campaign closes out, the leftover inventory stays on the shelf and your recurring box ships from it, with no second onboarding. See the crowdfunding fulfillment page for the campaign side.
What Simpl does not do
Simpl's storage is ambient only. There is no refrigerated or climate-controlled warehousing, so a box that includes chilled, frozen, or perishable items is not a fit. If everything in your box is shelf-stable at room temperature, ambient storage is the right fit.
Simpl is also not registered with the FDA as a food facility. If your box needs a registered facility, say so up front and we will tell you plainly whether it works.
Pricing and next steps
Subscription box fulfillment starts at $7/order, which covers the pick, packaging, and postage. There is a $750/month minimum billed pay-the-difference, so you are charged only the gap if a month comes in under it. Kitting and assembly is covered on the pricing page. Onboarding takes 5 to 7 days, and there is no onboarding fee.
Still comparing providers? Read our guide to the best subscription box fulfillment companies, then request a quote with your subscriber count, box contents, and ship date.
What you get with Simpl
99.99% Order Accuracy
Transparent Pricing & Billing
An Account Manager Who Knows You
Simple Software & Integrations
Warehouse Automation & Tools
Choosing the right fulfillment partner or 3PL is an incredibly important decision for any eCommerce brand and we don't take that lightly! Our team will work with you to see if we are the right fit and how we can help you continue to scale your brand.
Some of our features
Once your store is connected, orders go straight to the warehouse team, so you are no longer the person packing each box. Orders received before 12pm CT ship the same day via UPS, USPS, or FedEx.
We're incredibly hands-on with all of our clients and realize that you may need a bit more attention. We will work with you to solve every issue; we love problem-solving. Your dedicated account manager is ready to help you along the way as your brand continues to grow.
Inventory levels update in real time and every shipment gets a tracking number, so you can see what shipped and what is left on the shelf without emailing anyone to ask.
Connect Shopify, BigCommerce, WooCommerce, Squarespace, Amazon, Walmart, eBay, Etsy, and TikTok Shop.
Need something custom? Ask us about API integrations.
Postage is part of the per-order rate, which starts at $7/order and is based on weight. Every box ships via UPS, USPS, or FedEx, with no carrier markup or surcharge on top.
Know what’s actually in stock. You can track inventory across your sales channels from one place. Use views to quickly see what products are available, running low, or awaiting to be replenished.
Our software allows you to give your customers the option to do their own returns/exchanges based on your rules and parameters. You can also have your team process them; either way, you'll no longer have to handle them.
Every client gets a dedicated account manager, a real person reachable by email, with same-day (often faster) responses.
We receive and count inventory within 1 to 3 days of arrival at our Austin warehouse, so components are ready before your assembly window opens.
If we make a mistake on an order we fulfill, we cover the cost to make it right, including return shipping and re-fulfillment.
Frequently Asked Questions
Subscription box fulfillment is the pick, pack, and ship process for recurring box orders. A 3PL stores your products, assembles each box, and ships it to your subscribers on schedule. Simpl runs this as a flat-rate service starting at $7/order, which includes picking, postage, and packaging.
You send inventory to the warehouse. When a subscription order comes in, the team picks the items, builds the box, and ships it. Kitting and assembly is a standard Simpl service, so pre-built boxes and custom inserts are handled in-house. Orders received before 12pm CST ship the same day, at 99.99% order accuracy, with any errors corrected at Simpl's cost.
Simpl's subscription box fulfillment starts at $7/order, flat-rate. That covers picking, postage, and packaging, with no hidden fees. Kitting and assembly for building each box is a listed Simpl service. Storage is billed by warehouse storage type (bin, shelf, or pallet) based on the space your inventory uses.
Yes. Kitting and assembly is a standard Simpl service. The team combines products, inserts, and custom packaging into a finished box before it ships. You send components in bulk and the 3PL assembles boxes on demand, so you skip pre-building and storing them yourself.
A 3PL takes the monthly build off your plate. It receives and stores your box components, assembles boxes as renewal orders come in, and ships the cycle's spike, so adding subscribers doesn't mean renting space or hiring packers. The subscriber side stays in your subscription app: address changes, skips and cancellations happen there, and the 3PL ships the renewal orders that sync over from your store. Forecasting stays with you, too. Order enough of every component before each cycle, since one short insert holds up every box that needs it. Per-box costs stay predictable as subscriber count rises, and the box can stay on the same account as it grows instead of switching providers.
Look for reliable kitting and assembly, on-time batch shipping, accurate inventory tracking across components, and clear pricing. Subscription boxes live or die on shipping consistency, since a late or wrong box drives cancellations. Simpl offers kitting and assembly, ships same-day before 12pm CT, hits 99.99% order accuracy with errors corrected at our cost, and gives every client a dedicated account manager.
Simpl onboards new brands in 5 to 7 days. That covers connecting your store, receiving your inventory (1 to 3 days once it arrives), and setting your kitting and shipping rules. After onboarding, orders received before 12pm CST ship the same day.
They receive your individual components, store them, and assemble them into finished boxes before each shipping cycle, following your packing layout and any inserts. This lets you buy components in bulk and have them combined into boxes only when it is time to ship. Simpl does the kitting and assembly, building each box to your specifications.
You scale by handing the warehousing, kitting, and shipping to a partner so growth does not outrun your own space and labor. The partner absorbs the rising box count, manages component inventory, and keeps per-box costs predictable as you add subscribers. Simpl charges the same flat rate starting at $7/order whether you ship 50 boxes a month or 5,000, so your fulfillment cost scales with you.

