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

# Showbacks

> Distribute shared or unattributed cost across the nodes of an attribution model with showbacks.

Some spend genuinely has no single owner, a shared platform, observability tooling, an enterprise licence. A showback distributes that cost across the nodes that benefit from it, so each node carries a fair share without anyone having to pretend the spend was caused by one team.

Showbacks sit on top of attribution rather than replacing it. Attribute what you can first, then use showbacks for what is genuinely shared.

## Add a showback

1. Open the model in the editor (see [Edit and publish a model](https://docs.optimazehq.com/attribution/editing-models.md)).
2. In the side rail, select **Showbacks**.
3. Select **Include showbacks** so the model applies them.
4. Select **Add showback** and choose the **Source**. For a node, also choose the **Source node**.
5. Choose the **Target nodes** that share the cost.
6. Choose the **Method** (below). A summary underneath confirms where the cost will go.
7. Select **Add**, then publish the draft.

Each showback is listed with its source, number of targets and method. Use the edit icon to change one and the bin icon to remove it.

![Edit showback form with Source, Source node, Target nodes, Method and a summary of the allocation](https://mintcdn.com/optimaze/1GorH5batRwM9XiF/images/console/showbacks-edit.png?fit=max\&auto=format\&n=1GorH5batRwM9XiF\&q=85\&s=91cf1ac4979bed6dc0830e806a8bf887)

### Source

| Source | What it distributes |
| :- | :- |
| **Unattributed** | All spend not yet attributed to a named node |
| **Node** | The cost of one named node, chosen in **Source node** |

### Split method

| Method | How cost is split across the target nodes |
| :- | :- |
| **Even split** | An equal share to each target |
| **Proportional** | In proportion to each target's existing spend |
| **Fixed weights** | A weight you set for each target |

## See showbacks in Analytics

In [Analytics](https://docs.optimazehq.com/analytics.md), **Include allocations** under **More options** controls whether showback amounts are included, and the **Showback flows** chart shows how cost moves between nodes.


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