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unleash.unleash/website/docs/how-to/how-to-add-strategy-constraints.md
Nicolae Socaciu 5c3fe631f0
Updating the docs - how to add strategy constraints (#5256)
- Adding a new image to indicate that you also need to save the strategy
after you add a constraint
- Adding a new image showing how the edit constraint section looks like 
- Update a bit the text to match the new images
2023-11-06 10:24:52 +01:00

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---
title: How to add strategy constraints
---
:::info Availability
Before Unleash 4.16, strategy constraints were only available to Unleash Pro and Enterprise users. From 4.16 onwards, they're **available to everyone**.
:::
This guide shows you how to add [strategy constraints](../reference/strategy-constraints.md) to your feature toggles via the admin UI. For information on how to interact with strategy constraints from an [Unleash client SDK](../reference/sdks/index.md), visit the specific SDKs documentation or see [the relevant section in the strategy constraints documentation](../reference/strategy-constraints.md#sdks 'strategy constraints documentation, section on interacting with constraints from client SDKs').
## Prerequisites
You'll need to have an existing feature toggle with a defined strategy to add a constraint. The rest of this guide assumes you have a specific strategy that you're working with.
## Step 1: Open the constraints menu {#step-1}
On the strategy you're working with, find and select the "edit strategy" button.
![A feature toggle with one strategy. The "edit strategy" button is highlighted.](/img/create-toggle-edit-strategy.png)
On the "edit strategy" screen, select the "add constraint" button to open the constraints menu.
![A feature toggle strategy view showing a button labeled with add constraints.](/img/add-constraint.png)
## Step 2: Add and configure the constraint {#step-2}
Refer to [the _constraint structure_ section of the strategy constraints reference](../reference/strategy-constraints.md#constraint-structure) for a thorough explanation of the constraint fields.
1. From the "Context Field" dropdown, **select the context field** you would like to constrain the strategy on and **choose the [constraint operator](../reference/strategy-constraints.md#strategy-constraint-operators)** you want.
2. **Define the values** to use for this constraint. The operator you selected decides whether you can define one or multiple values and what format they can have.
3. **Save the constraint** first.
![A strategy constraint form with a constraint set to "useid". The "values" input is a text input containing the values "41", "932", "822".](/img/constraints-add-to-strategy.png)
## Step 3: Save the strategy {#step-3}
![A feature toggle strategy view showing a button at the end of the form labeled with save strategy.](/img/constraints-save-strategy.png)
## How to update existing constraints
To update an existing constraint, find the constraint in the "edit strategy" screen and use the constraint's "edit" button.
![A strategy form showing an existing constraint with existing values and 2 buttons, the "edit" button is highlighted.](/img/constraints-edit.png)