Rithum is what CommerceHub, ChannelAdvisor and Dsco became. Four different products sit behind the name. This page tells you which one your retailer means, and how AIMS360 connects over native EDI.
Rithum is what CommerceHub, ChannelAdvisor and Dsco became. When a retailer tells a brand to "get on Rithum", that can mean four genuinely different products with different onboarding, different obligations and different commercial terms. This page tells you which one you are being asked for, and AIMS360 connects to them over native EDI from the same order and inventory record that runs your bulk retail accounts.
Rithum is the company formed in December 2023 when CommerceHub, ChannelAdvisor and Dsco were brought together under one brand. It sells software to both sides of the retail relationship: tools for retailers to run dropship programs and their own marketplaces, and tools for brands to list and sell on marketplaces. Rithum says it serves more than 40,000 brands and retailers across a network of over 600 marketplaces.
The reason this page exists is that "Rithum" on its own does not tell a brand what it has been asked to do. Three companies merged, each bringing its own product, and the retailer that emailed you is using exactly one of them. Getting that wrong costs weeks.
Five names for things that are now one company or its products. Here is the actual sequence.
| When | What happened |
|---|---|
| November 2020 | CommerceHub acquires Dsco. |
| November 2022 | CommerceHub acquires ChannelAdvisor. |
| December 2023 | All three become Rithum. Rithum also acquires Cadeera, an AI search and discovery startup, around the same period. |
| Today | Rithum is the corporate brand. CommerceHub is still the operational one. The supplier portals, the single sign on, the SFTP endpoints and the partner setup addresses are all still on commercehub.com and still CommerceHub branded, and OrderStream is a current product name rather than a retired one. Dsco keeps its own separate login. |
| Surface | What it is |
|---|---|
| rithum.com | The corporate and marketing site. commercehub.com redirects here, which is where the impression comes from that CommerceHub is gone. |
| sso.auth.commercehub.com | Supplier single sign on. Still CommerceHub branded. |
| dsm.commercehub.com | The drop ship manager login, which identifies itself as the OrderStream production environment. Retailers also have their own subdomains, including separate partner test environments. |
| sftp.commercehub.com | Where the files actually move, with a matching sftp-test host for certification. |
| app.dsco.io | Dsco, which is the exception. Its own product, its own login, not on a commercehub.com host. |
| Product names in current use | OrderStream, Integration Manager, WebPortal and DSM. These are live names on live systems, not legacy labels. |
These are not variations of one thing. Different onboarding, different obligations, different commercial terms, and in two of the four cases you are not even selling to the retailer.
| What you were asked to join | What it actually means |
|---|---|
| Dsco | The dropship and marketplace platform Rithum acquired in 2020, still running under its own name with its own supplier login. This is what Kohl's uses for every drop ship supplier on Kohls.com, and what Nordstrom and Neiman Marcus dropship run on. Retailer sets retail, pays you a wholesale cost, you ship to the consumer in their packaging. See Dsco. |
| Rithum Dropship | The other dropship product, and the one still running on CommerceHub branded infrastructure. Macy's vendor direct fulfillment names OrderStream in its own supplemental standards, and the OrderStream production login is live at dsm.commercehub.com. Commercially the same shape as Dsco, technically a separate program with separate onboarding. Same parent company is not the same connection. See Macy's. |
| Private Marketplaces | Rithum's marketplace product for retailers, which puts it in the same business as Mirakl. If a retailer runs its marketplace on Rithum rather than Mirakl, you set your own retail price and the retailer takes a commission. That is a fundamentally different deal from dropship even though the warehouse work looks identical. |
| Marketplace listing tools | The ChannelAdvisor lineage, sold to brands rather than retailers: marketplace listings, inventory and order management, product feeds and advertising across Amazon, Walmart, Best Buy and the rest of the network. Here Rithum is your vendor, not the retailer's. |
Named in Rithum's own material or in trade reporting. Programs change, so confirm your specific account.
Kohl's announced Dsco in 2019 as the platform for all drop ship suppliers on Kohls.com. Nordstrom expanded its partnership with and invested in Dsco. Neiman Marcus is named in Dsco's own developer material. Rithum publishes Dsco documentation for the Macy's Marketplace channel.
Rithum names Adidas, Best Buy, B&Q, Draper Tools, The Home Depot and Zalando among the retailers and brands using its platform. Those are Rithum's customers, not a statement about AIMS360 programs.
Rithum announced an integration letting US merchants list and manage products directly on Best Buy through its platform. Relevant if you sell anything Best Buy carries, which now reaches well beyond electronics.
Lane Bryant launched a US dropship program with Rithum, led by footwear and accessories, to broaden online assortment without taking inventory risk. A live example of a mid-size apparel retailer opening a dropship door rather than a wholesale one.
The Lane Bryant example is the pattern worth watching. Retailers that would historically have opened a buy are opening a dropship or marketplace program instead, because it costs them nothing to test. For a brand that means the door is easier to get through and the terms behind it are not the terms you are used to.
Rithum runs dropship and marketplaces. Mirakl runs marketplaces. A retailer can use one, the other, or both for different programs.
| What it does | |
|---|---|
| Rithum | Dropship at scale through Dsco and Rithum Dropship, plus Private Marketplaces for retailers and marketplace listing tools for brands. Strongest where the retailer wants to keep control of retail price and customer. |
| Mirakl | Marketplace only, and the platform behind most of the department store marketplaces launched since 2022: Macy's, Bloomingdale's, Nordstrom, Ulta Beauty, Urban Outfitters and others. The seller sets the price and the retailer takes a commission. |
| Retailer X12 EDI | Classic bulk wholesale, unrelated to both. 850 in, 855 back, 856 ASN with GS1-128 cartons, 810 invoice. Most department store brands run this in parallel with one or both of the above. |
Macy's is the clearest illustration of why the distinction matters: bulk wholesale on X12 EDI, vendor direct fulfillment on the Rithum OrderStream lineage, and a marketplace on Mirakl with Dsco documentation for the channel. One retailer, three platforms, three onboardings, one pool of stock underneath.
AIMS360 connects to Rithum programs over EDI, natively, with multiple years of live Dsco programs behind it. The connection is part of the ERP rather than a separate subscription.
Rithum orders join order management next to bulk retailer EDI, B2B wholesale and your own ecommerce, instead of sitting in a portal someone has to remember to open.
What publishes is available to sell, with open orders and allocations netted out, so a bulk order already committed cannot be sold again to a consumer.
When a bulk order, a dropship program and a marketplace listing want the same units, allocation rules settle it deliberately rather than whoever picks first.
Your warehouse, a retail location or a third party 3PL, with ship confirmation and tracking returned from the location that packed the box.
Black Friday, Cyber Monday and December run exactly as an ordinary week does, including a customer processing over 1.2 million orders per day. No holiday system to stand up.
AIMS360 charges no per document or per kilocharacter fees of its own, so a peak that multiplies your order count does not multiply what you pay us to process it.
What brands ask when a retailer sends them to Rithum.
Rithum is the company formed in December 2023 when CommerceHub, ChannelAdvisor and Dsco were unified under one brand. It sells to both sides of retail: dropship and marketplace software for retailers, and marketplace listing, inventory, order management and advertising tools for brands. Rithum says it serves more than 40,000 brands and retailers across a network of over 600 marketplaces.
Same company, and both names are still current. CommerceHub acquired Dsco in November 2020 and ChannelAdvisor in November 2022, and in December 2023 all three were brought under the Rithum brand. But that rebrand was corporate, not operational. commercehub.com redirects to rithum.com, while the supplier portals, the single sign on at sso.auth.commercehub.com, the drop ship manager at dsm.commercehub.com and the SFTP endpoints your files move over are all still CommerceHub branded. Product names including OrderStream, Integration Manager, WebPortal and DSM are still in use. So a vendor guide or a routing document saying CommerceHub is not automatically out of date.
Dsco is one Rithum product, not the whole company. It is the dropship and marketplace platform Rithum acquired in 2020, it still runs under its own name with its own supplier login, and it is what Kohl's uses for every drop ship supplier on Kohls.com. Rithum also sells a separate Dropship product carrying the CommerceHub lineage, a Private Marketplaces product for retailers, and marketplace listing tools for brands.
They are two separate dropship systems under one parent company, with separate onboarding. Dsco carries its own name and its own login at app.dsco.io. Rithum Dropship still runs on CommerceHub branded infrastructure, and Macy's vendor direct fulfillment refers to it as OrderStream in Macy's own supplemental standards. The OrderStream production login is live at dsm.commercehub.com. Commercially they work the same way. Technically, being live on one does not make you live on the other.
Which Rithum product, and who your onboarding contact is. The answer changes the deal, not just the plumbing. On a dropship program the retailer sets the retail price and pays you a wholesale cost. On a marketplace you set your own retail and the retailer takes a commission. Those are different businesses, and you should know which one you have agreed to before anything is configured.
Yes, over EDI, natively, with multiple years of live Dsco programs behind it. The connection is part of AIMS360 rather than a separate subscription, so orders, availability, shipments and invoices move between the platform and the same records that run your bulk retail accounts. Which Rithum product a given retailer uses, and what its onboarding requires, is worked out during implementation.
Yes, on the same platform it runs the rest of the year, including a customer processing over 1.2 million orders per day. There is no separate holiday system to stand up, and because AIMS360 charges no per document or per kilocharacter fees of its own, a seasonal spike in dropship or marketplace orders does not multiply what you pay to process them. Bulk retail EDI keeps running through the same weeks.
On the Dsco side, Kohl's for all Kohls.com dropship, plus Nordstrom, Neiman Marcus and the Macy's Marketplace channel. Rithum's own material names Adidas, Best Buy, B&Q, Draper Tools, The Home Depot and Zalando among its customers. Rithum announced a Best Buy Marketplace integration in December 2025, and Lane Bryant launched a US dropship program with Rithum in January 2026.
On the marketplace side, yes. Rithum sells a Private Marketplaces product to retailers, which is the same job Mirakl does. On dropship, Rithum is the bigger name and Mirakl does not compete directly. A single retailer can use both for different programs, which is why the platform question and the program question have to be asked separately.
If you sell that retailer bulk, yes. Dropship and marketplace programs sit alongside classic X12 wholesale rather than replacing it, and most department store brands run both. The purchase orders, ASNs, carton labels and invoices for your bulk business are unaffected by anything happening on a dropship platform.
By publishing available to sell rather than units on hand. AIMS360 nets out open orders and allocated stock before the number reaches any channel, so a bulk purchase order already committed to a retailer is not offered again to a consumer. Units can also be held in a virtual warehouse so they never enter the calculation. On dropship a stale number produces a cancellation rather than a backorder, and cancellation rate is what retailers score.
No. The platform is shared, the program is not. Each retailer runs its own program with its own catalog requirements, packing slip, service levels and performance rules, and each has its own onboarding and its own approval. The second one is usually considerably faster than the first, because the shape of the work is familiar.
Last reviewed 7 August 2026 by the AIMS360 EDI team. The unification of CommerceHub, ChannelAdvisor and Dsco under the Rithum brand was announced in December 2023. The product list and the figures for brands, retailers and marketplaces are Rithum's own published numbers. The commercehub.com portals, hostnames and product names are current live systems, checked 7 August 2026. Retailers named in Rithum's boilerplate are Rithum's customers and are not a statement about AIMS360 programs. The Best Buy Marketplace integration was announced by Rithum in December 2025 and the Lane Bryant US dropship program was reported in January 2026. Macy's vendor direct fulfillment naming OrderStream is from Macy's own supplemental standards. Platform names, products and retailer programs change, so confirm current specifics with your retailer and with Rithum.
Bring us the retailer and what they sent you. We will tell you which product it is, what the onboarding involves, and how it runs on the same stock record as your bulk accounts.
