Custom Inventory & Kitting
Pair your favorite swag and branded merchandise with Mailbox Power’s print-on-demand cards, brownies, and gifts — all packed and shipped from one place.
Ship your own products to our warehouse, we store and track them as private SKUs in your account, and you can trigger them from any automation — right alongside cards, brownies, and other personalized items.
Browse Branded Swag for Your InventoryTurn Your Existing Swag into On-Demand Experiences
Already have apparel, books, gadgets, or VIP gifts you love? Store them with us once, then send them on demand — fully automated, perfectly packaged, and paired with personalized cards and gifts.
Store Your Own Inventory
Ship your polos, hats, books, kits, or giveaways to our warehouse. We receive, check in, and store them in secure, climate-controlled space — ready whenever you need to ship.
Private SKUs Inside Your Account
Each stored item becomes a private SKU only your account can see. Add it to automations, one-off orders, and custom projects just like any Mailbox Power product — no extra steps, no manual tracking.
Mix with Print-On-Demand in One Box
Combine your swag with personalized cards, brownies, drinkware, and more — all packed in a single shipment. One automation, one box, one unforgettable experience on the recipient’s doorstep.
From “Stuff in the Closet” to Smart, Automated Kits
Most companies have swag tucked away somewhere — logo apparel, branded notebooks, water bottles, or conference giveaways that never quite make it into the hands of the right people.
With Custom Inventory, those items become part of your automated experience engine:
New employee welcome kits? Store polos and hats with us,
then build an automation that sends a card, brownies, and branded
apparel the moment someone joins your team.
VIP client gifts? Keep premium swag on hand and trigger
a fully branded kit after a big renewal, referral, or milestone.
Event follow-up? Ship leftover conference swag to us
and send curated follow-up boxes to hot prospects — no packing party
required.
Need Swag? Start with Our Branded Catalog.
Don’t have inventory yet — or ready to refresh an old kit? Browse thousands of logo-ready promotional products in our Swag Catalog at swag.mailboxpower.com.
Order your favorites in bulk (minimums apply), have them branded with your logo, and ship them straight to our warehouse. We’ll store them as private SKUs so you can add them to any Mailbox Power project or automation.
It’s the best of both worlds: promo-grade swag + print-on-demand personalization — all fulfilled from one place.
Explore the Swag CatalogHow Custom Inventory Works
Simple setup. Powerful on the back end. Fully automated once it’s live.
Choose a Storage Plan
Pick the box, shelf, or rack option that fits your volume today — with room to grow as your campaigns expand.
Send Us Your Inventory
Ship your items to our warehouse. Our team receives, checks in, and organizes them to match your specs.
We Create Private SKUs
Each item becomes a private SKU inside your account, so you can add it to automations and projects just like any other product.
Launch Kits & Campaigns
Build automations or one-off sends that combine your inventory with cards, brownies, and more — all shipped in one box.
Inventory Storage Plans
Store your branded swag, apparel, books, kits, or promotional products — and ship them alongside Mailbox Power personalized gifts.
Box Storage
- 2 Boxes (18" × 11" × 12")
- Max 2 SKUs per box (4 total SKUs)
- Send with cards & gifts
- Perfect for small apparel & swag
Shelf Storage
- 1 Shelf = 4 Boxes (18" × 11" × 12")
- Max 2 SKUs per box (8 total SKUs)
- Send with cards & gifts
- Great for apparel kits & medium swag
Rack Storage
- 6 Shelves = 24 Boxes
- Max 2 SKUs per box (48 total SKUs)
- Send with cards & gifts
- Ideal for large kits & companies scaling swag programs
Ready to Get Started?
Chat with our team using the support icon in the lower right corner of this page to have our team will configure a custom inventory plan that fits your needs.
Please note: Custom inventory plans require an Executive Membership and a minimum 6-month commitment.