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title: "Supply Matching Tool"
canonical: "https://docs.rubiconwater.com/space/PNC/2051867137/Supply%20Matching%20Tool"
format: markdown
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> Macro (toc)

The Supply Matching tool is an enhancement to the planning and rationing tools for systems where the supply varies in a predictable way. It allows you to specify the shape of a supply curve for a plan and to view the supply curve on the same trend as the demand curve. This allows you to manage the planned demand to match the supply .

- Use the [https://rubiconwater.atlassian.net/wiki/spaces/CFGNC/pages/2001405423](https://rubiconwater.atlassian.net/wiki/spaces/CFGNC/pages/2001405423) to specify a system-wide default supply curve
- Use the **Supply Capacity Parameters** tab in the <u>[Plan History Module](https://rubiconwater.atlassian.net/wiki/spaces/PNC/pages/2018672858)</u> to specify a curve for each plan. When you create a supply curve for a plan, it is saved as the default curve for the Planning Area or Planning Group associated with the plan.

Use the **View > Show/Hide Supply Capacity Flow** option in the <u>[Trending Module](https://rubiconwater.atlassian.net/wiki/spaces/DCNC/pages/2010316813)</u> to toggle the visibility of the supply capacity curve on the trend screen.

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