WooCommerce Social Login: Customize user date

social-login.php

<?php // only copy this line if needed

function sv_wc_social_login_new_user_data_add_filters() {

	foreach ( array_keys( wc_social_login()->get_available_providers() ) as $provider ) {
		add_filter( 'wc_social_login_' . $provider . '_new_user_data', 'sv_wc_social_login_new_user_data' );
	}
}
add_action( 'init', 'sv_wc_social_login_new_user_data_add_filters' );

function sv_wc_social_login_new_user_data( $user_data ) {

	$user_data['role'] = 'custom_role_here';

	return $user_data;
}