Make All Users Vendors

/**

 * Make all new user registrations Vendors. 

 */

add_filter( 'woocommerce_new_customer_data', 'wcv_woocommerce_new_user_data' );

function wcv_woocommerce_new_user_data( $data ){

    $data['role'] = 'vendor'; // the new default role

    return $data;

}

/**

 * Redirect the new registered user to the Vendor Dashboard 

 */

add_filter( 'woocommerce_registration_redirect', 'wcv_vendor_registration_redirect', 10, 1 ); 

function wcv_vendor_registration_redirect( $redirect_to ) {

	$vendor_redirect    = get_option( 'wcvendors_vendor_login_redirect', '' );

	$dashboard_page_ids = (array) get_option( 'wcvendors_dashboard_page_id', array() );

	$dashboard_page_id  = reset( $dashboard_page_ids );

	$redirect_to = apply_filters( 'wcv_vendor_login_redirect_url', get_permalink( $dashboard_page_id ), $dashboard_page_id, $dashboard_page_ids );

	return $redirect_to;

}