# Custom fields on registration Beans integrates directly with your ecommerce platform (Shopify, WooCommerce, etc...). To join your rewards program, customers create a shop account. Once a customer has registered on your shop, Beans retrieves their information and add them to your rewards program. This means that the registration process is handled by your shopping cart system. If you want to get extra information from your customers you will have to update the registration flow of your shop. This is out of the Beans' flow, but there are other tools that can help you achieve that. For Shopify, we recommend the [Helium Custom Fields](https://apps.shopify.com/customr) application. For WooCommerce, the [Custom Fields](https://woocommerce.com/products/custom-fields-for-woocommerce/) plugin. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.trybeans.com/members/custom-fields/custom-fields-on-registration.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.