Automatically active enable selling for users and change their role to the vendor.
In Dokan when a user registered it can create or edit products. To create or edit products this user should be a vendor and enable selling for it.
With this plugin, all users after login into their account, will be automatically vendor and enable selling for them.
/wp-content/plugins/dokan-auto-seller
directory, or install the plugin through the WordPress plugins screen directly.