DEV Community: Raheem Amer

What's the difference between Manhattan OMNI and OMS ?

Raheem Amer — Tue, 23 Jun 2026 14:29:27 +0000

This question came up during a system design discussion with one of my colleagues:

"What's the difference between OMS and Manhattan OMNI?"

At first, I wasn't completely sure myself, so I dug deeper into the topic. Here's the simplified explanation I came up with.

What Is an OMS?

OMS stands for Order Management System.

In industries such as retail, fashion, and e-commerce, businesses need a centralized system to:

Track inventory
Manage orders
Coordinate fulfillment
Handle shipments and returns
Maintain visibility across warehouses and stores

An OMS acts as the operational brain that manages everything that happens after an order is placed.

What Is Manhattan OMNI?

This is where many people get confused.

OMS is a category of software.

Manhattan OMNI is a specific product that belongs to that category.

Think about it this way:

OMS = the concept
Manhattan OMNI = one implementation of that concept

Much like:

Database = category
PostgreSQL = product

CRM = category
Salesforce = product

Why Is It Called "OMNI"?

The word OMNI comes from the concept of omnichannel commerce.

An omnichannel strategy connects all customer touchpoints, including:

Physical stores
E-commerce websites
Mobile applications
Customer service channels

The goal is to create a seamless shopping experience regardless of where the customer interacts with the business.

Unlike a traditional multichannel approach, where each channel operates independently, omnichannel commerce keeps everything synchronized.

For example:

A customer can buy online
Return in-store
Check inventory through the mobile app

All while interacting with the same underlying inventory and order systems.

Where Does This Fit in an SFCC Architecture?

Let's follow the lifecycle of a typical order.

Step 1: Customer Places an Order

When a customer clicks Place Order, SFCC handles the commerce side of the transaction.

SFCC will:

Validate the cart
Calculate taxes
Apply promotions and discounts
Authorize payment
Create the order record
Send order details to the OMS

At this point, SFCC's primary responsibility is complete.

The order has been successfully captured.

Now the operational work begins.

Step 2: Manhattan OMNI Takes Over

Once the order reaches Manhattan OMNI, the system must determine how the order will actually be fulfilled.

The first question it asks is:

Where is the inventory available?

Example:

Location	Available Inventory
Cairo Warehouse	0
Alexandria Warehouse	2
City Center Store	5

Step 3: Order Routing

Based on available inventory, Manhattan OMNI decides where the order should be fulfilled from.

This process is called Order Routing.

The OMS evaluates factors such as:

Inventory availability
Distance to the customer
Shipping costs
Store or warehouse capacity
Delivery SLA commitments
Business fulfillment rules

For example:

Since the Cairo warehouse has no inventory, Manhattan OMNI may decide:

Fulfill the order from the Alexandria warehouse.

This decision is entirely managed by the OMS.

Step 4: Fulfillment Execution

After selecting the fulfillment location, Manhattan OMNI generates fulfillment tasks.

Examples include:

Pick the item
Pack the item
Print shipping labels
Schedule shipment
Hand the package to the courier

This is where warehouse operations begin.

Important Distinction

Warehouse employees typically do not interact with SFCC.

Instead, they work with:

Manhattan OMNI
Warehouse Management Systems (WMS)
Barcode scanners
Inventory management tools
Shipping systems

SFCC focuses on selling.

Manhattan OMNI focuses on fulfilling.

SFCC vs Manhattan OMNI

SFCC	Manhattan OMNI
Customer-facing commerce platform	Order management platform
Shopping experience	Fulfillment experience
Product catalog	Inventory orchestration
Cart and checkout	Order routing
Promotions and pricing	Picking and packing
Payment authorization	Shipping and delivery
Order creation	Order fulfillment

The Key Takeaway

A common misconception is that SFCC manages the entire order lifecycle.

In reality:

SFCC creates and captures the order.
Manhattan OMNI determines how the order will be fulfilled.
Warehouses and stores execute the fulfillment tasks generated by Manhattan OMNI.

In large enterprise architectures, these responsibilities are intentionally separated.

Commerce is not fulfillment.

SFCC sells the product.

Manhattan OMNI gets the product into the customer's hands.

Web Dev 101 (P:2)

Raheem Amer — Tue, 05 Apr 2022 17:39:34 +0000

Have you heard the term box model before?

If you did, then good job but if not let's talk about it.

Briefly, A box model is similar to a box that contains a bunch of stuff inside of it and these stuff are ?
1- Content
2- Padding
3- Border
4- Margin

This will help you visualize the whole concept a bit

Okay, great! let's know more?

Content:
It's basically the information inside the box, like for example
if we have a code like this

<p> Hello World </p>

So, the content here is gonna be hello world

Padding:
It's the space around the content

Border:
it lays between the margin and the padding, basically plays the middle man between them

Margin:
The big boy, if we have 2 div stick to each other and you want to separate them then margin is the one to call here why?
because margin controls the outer space of boxes, the outer space around the box to be exact.

As you can see, it's easy just read this stuff but in fact it's one of the most challenging things you have to face while learning CSS.

Have a great day everyone and thank you <3

Web Dev 101 (P:1)

Raheem Amer — Fri, 11 Mar 2022 13:37:49 +0000

Have you heard the terms IP, DNS, HTTP, and HTTPS before?

if not, then this article will help you grasp a piece of basic information about them.

let's imagine that the internet is like a district that's filled with houses, each house has a mailing address in case someone wanna send you something, they write your mail address and the mailing company takes care of it. You check your mailbox the next day and there is the present that your sister told you about.

So the company here is the internet, it helps you to send and receive data online.

The mailing address here is the IP or the internet protocol, each device that logs on the internet has a unique set of numbers, these set numbers are the numbers that define your location on the internet so anything you do on the internet like simply logging in to Dev community's website, you send a logging message with your numbers ( IP ) to their server and they respond with letting you in.

What about HTTP and HTTPS?
HTTP stands for hypertext transfer protocol and what it does is to monitor the transfer of information between you and the other person or service.

But how?
It's called protocol for a reason right? So, for each connection made on the internet, its job is to check whether both parties are following a set of rules to allow the transfer of information between them.

But wait what's HTTPS?
I guess most of us heard this quote

no system is safe

so what it does is to encrypt the connection established between the parties to be more secure.

As for DNS?
It's called a domain name server, so when you want to google stuff like any normal person, you simply type youtube but no the IP address of youtube if you do then you are a weirdo man.

So, What DNS does is basically lookup in its information and convert the domain name into IP and then you will be redirected to your desired destination.

Thank you and good luck <3