By the help of Magento2 Marketplace Custom Option module, seller can add custom options in their Magento2 Marketplace products. The seller can select various input types for the custom option. After building the Best Magento2 Marketplace Multi-Vendor module, we have added one more extra addon for our Marketplace module. This module is an add-on of Magento2 Marketplace Module. To use this module, you must have installed Magento2 marketplace module first Magento2 Marketplace Module.