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aliases = ["/docs/grafana/latest/panels/format-data/edit-value-mapping/", "/docs/sources/panels/format-data/edit-value-mapping/"]
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title = "Edit a value mapping"
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weight = 60
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+++
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# Edit a value mapping
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You can change a value mapping at any time.
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## Before you begin
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- [Add a panel to a dashboard]({{< relref "../working-with-panels/add-panel.md" >}}).
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- Ensure you have an existing value mapping to edit.
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**To edit a value mapping**:
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1. Edit the panel that contains the value mapping you want to edit.
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1. In the panel display options, in the **Value mappings** section, click **Edit value mappings**.
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1. Make the changes and click **Update**.
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