> For the complete documentation index, see [llms.txt](https://docs.roivenue.com/roivenue-resources/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/reports/dimension-breakdown.md).
# Dimension Breakdown
Dimension Breakdown splits one metric by any dimension, such as site, platform or campaign. See which values drive the total, how they develop over time and what share each one has.
Performance tells you how the total developed. Dimension Breakdown tells you what the total is made of. Choose a dimension, for example **Platform Name**, and a measure, for example **Cost**, and the page shows how each platform contributes, how its share changes over time and how it compares with the others.
Use Dimension Breakdown when you want to know:
* Which sites, platforms or campaigns bring the most revenue or conversions?
* Where does most of the budget go?
* Which channel grew or dropped in a period?
* How does one channel perform compared with the others on a ratio such as ROAS?
The page has three parts:
1. **Time chart:** the measure over time for the largest dimension values.
2. **Totals for the period:** a pie chart and a bar chart with the value of each dimension value for the whole period.
3. **Dimension Data:** a table with all dimension values.
To open the page, go to **Reports → Dimension Breakdown** in the left navigation. The date range, the attribution model and the **Filter Panel** at the top apply to the whole page.
***
### How to set up the page
At the top of the page, choose:
* **Dimension:** how to split the data, for example **Site**, **Platform Name**, **Campaign (auto)** or **Source/Medium/Campaign**.
* **Measure:** what to measure. You can choose a basic metric such as Cost, Net Revenue or Conversions, or a ratio such as ROAS, Cost per Conversion or Conversion Rate.
The choice applies to all charts and the table.
***
### How to read the charts
#### Time chart
The line chart shows the measure over time for the five largest dimension values. Use it to see when a value grew or dropped, and whether the change came from one channel or from all of them. The granularity of the date picker decides whether a point is a day, a week or a month.
#### Totals for the period
The title shows the measure and the period, for example **Total Cost for the period**.
* The **pie chart** shows the share of each value in the total.
* The **bar chart** ranks the values from the largest.
{% hint style="info" %}
The pie chart appears only for measures that add up, such as Cost, Net Revenue or Conversions. For ratios such as ROAS, the values of the channels do not add up to a meaningful total, so the page shows only the bar chart. The title then says **Average**, for example **Average Return on Ad Spend for the period**.
{% endhint %}
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### How to work with the Dimension Data table
The table lists all values of the dimension with the measure and, for measures that add up, their **Share** of the total. The **Total** row shows the value for all rows: the sum for metrics that add up, the overall ratio for ratios.
* **Additional Metric** adds a second metric to the table, for example **Conversions** next to **Cost**. The table always shows the main measure and one additional metric.
* Click a column name to sort the table. Use the filter field under the column name to filter it.
* **Page Size** sets how many rows you see.
* The download icon exports the table to XLSX. **Add To Dashboard** adds it to a dashboard.
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### How to go deeper
Dimension Breakdown shows one dimension at a time. To drill down, combine the dimension with the **Filter Panel**.
{% hint style="info" %}
**Example:** To see how Google Ads campaigns perform in one country, filter **Site** to that country's site and **Platform Name** to Google Ads, then set **Dimension** to **Campaign (auto)**.
{% endhint %}
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### How to save and share the view
* **Save** saves the page with its dimension, measure, filters and date range as a bookmark. See [Bookmarks](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/bookmarks).
* **Share** copies a link to the current view.
* **Add To Dashboard** adds the time chart, the pie chart, the bar chart or the table to a dashboard. See [Dashboard](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/dashboard).
***
#### FAQ
1. Why is the pie chart visible only sometimes?
The pie chart shows shares of a total, so it appears only for measures that add up, such as Cost, Net Revenue or Conversions. If Channel A has 800 conversions and Channel B 200, Channel A has 80% of all conversions. For ratios such as ROAS, the values cannot be added up, so a pie chart would not say anything about the size of the channels.
2. How do filters work on this page?
The same way as on other pages. When you select a value in the **Filter Panel**, the whole page shows only the data for that value. Combine filters with the dimension to drill down, for example to the campaigns of one platform on one site.
3. Can I add more measures to the table?
No. The table shows the main measure and one **Additional Metric**. To work with more metrics at once, use [Tables](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/tables) or [Performance](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/reports/performance), or send the data to your BI tool with [Exports](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/data/exports).
4. Why does the time chart show only some values?
To keep the chart readable, it shows only the five largest values. The table lists all of them. To see a smaller value over time, filter the page to it with the **Filter Panel**.
5. Why do the numbers change when I switch the attribution model?
Attributed metrics, such as Conversions, Net Revenue or ROAS, depend on the attribution model, so each channel gets a different share. Cost does not depend on attribution. To see the differences side by side, use [Model Comparison](https://docs.roivenue.com/roivenue-resources/roivenue-training/roivenue-app/attribution/model-comparison).
6. Why can't I find a dimension or a metric?
Some dimensions and metrics are hidden on certain pages. Go to **Data → Dimensions** or **Data → Metrics**, open the settings of the item and check on which pages it is hidden.