Preselecting Configurable Product Options
You can preselect configurable product options using URL query or hash parameters.
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Query Parameters: Pre-select options with `?attribute_code=option_id`.
Example: `?size=176`
Here, `size` is the attribute code, and `176` is the option ID.
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Hash Parameters: Pre-select options with `#attribute_id=option_id`.
Example: `#142=176`
Here, `142` is the attribute ID, and `176` is the option ID.
To find the attribute code, attribute ID, and option ID, inspect the source code of the product page.