# Customization
Our customization modules use the standard PrestaShop customization system under the hood.
This is a great aspect, as it ensures compatibility with other modules and themes.
To see if a module or theme supports the PrestaShop customization system, you can create a test product containing a customization text field.
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Then you can add a customization field like this
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The field will be displayed like this
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You can then save a customization and add it to cart to make the necessary tests.
For more technical information about the PrestaShop customization system, please check this post (opens new window).