> ## Documentation Index
> Fetch the complete documentation index at: https://brandstack.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Understanding Dimensions: How to Slice Your Numbers

> Learn what a dimension is and how to slice metrics by channel, product, region, campaign, and cohort to find what really drives your growth.

A dimension is simply a way to split up your numbers so you can see what is actually working. Think of it as the "by" in a sentence like "Show me revenue by channel." Brandstack lets you slice every metric by the dimensions that matter for a D2C brand.

## What a dimension means

When you look at total revenue for the month, you see one big number. A dimension breaks that number into pieces so you can compare them. Without dimensions, you are flying blind. With them, you can spot that one product is carrying the whole store, or that one ad channel is burning cash.

## Core dimensions in Brandstack

| Dimension        | What it is                                  | Example values                                             |
| ---------------- | ------------------------------------------- | ---------------------------------------------------------- |
| Channel          | Where the traffic or sale came from         | Meta Ads, Google Ads, Organic, Email, Direct               |
| Product / SKU    | The specific item sold                      | Cotton T-Shirt XL, Blue Sneakers SKU-4021                  |
| Country / Region | Where the customer is located               | India, Maharashtra, Bangalore urban                        |
| Campaign         | The named marketing effort you are running  | Summer Sale 2024, Retargeting June                         |
| Cohort           | A group of customers who share a start date | First purchased in May 2024, First purchased from Meta Ads |

## Example slicings you can build

Here are three common ways D2C owners use dimensions in Brandstack:

<CardGroup cols={1}>
  <Card title="ROAS by channel" icon="split">
    See which ad platform gives you the best return. You might discover Meta Ads has a ROAS of 4.2 while Google Ads sits at 2.8, so you shift budget toward Meta.
  </Card>

  <Card title="Contribution margin by SKU" icon="package">
    Find which products actually make money after fulfillment costs. A top-selling product might have a thin margin, while a slower mover is highly profitable.
  </Card>

  <Card title="Net revenue by country" icon="globe">
    Spot regional winners and losers. A state with high gross sales might also have high return rates or expensive shipping, making it less attractive than it looks at first.
  </Card>
</CardGroup>

<Note>
  You can combine two or more dimensions in a Brandstack report. For example, look at contribution margin by SKU and then further break it down by campaign to see which ads are promoting your most profitable products.
</Note>