Henceforth, using Custom Magento 2 attribute module you can extend your customer sign-up form. We need to create a data patch file as CreateAttributes.php in our Custom Magento 2 attribute module Setup folder. Magento 2 Marketplace Custom Attribute module allows the admin to create a custom attribute from the admin panel and select it to display/hide on the front end. The attribute used for vendors’ products will have the same property as Magento 2 custom attributes.