Divi - Custom Sidebar For WooCommerce Pages

functions.php

<?php /* Don't include this line if your child theme functions.php already includes it */

function my_et_divi_output_content_wrapper_end() {
	echo '</div> <!-- #left-area -->';
	if (
		( is_product() && 'et_full_width_page' !== get_post_meta( get_the_ID(), '_et_pb_page_layout', true ) )
		||
		( ( is_shop() || is_product_category() || is_product_tag() ) && 'et_full_width_page' !== et_get_option( 'divi_shop_page_sidebar', 'et_right_sidebar' ) )
	) {
		dynamic_sidebar( 'eCommerce Sidebar' );
	}
	echo '
				</div> <!-- #content-area -->
			</div> <!-- .container -->
		</div> <!-- #main-content -->';
}

function my_et_woocommerce_custom_sidebar() {
	remove_action( 'woocommerce_after_main_content', 'et_divi_output_content_wrapper_end', 10 );
	add_action( 'woocommerce_after_main_content', 'my_et_divi_output_content_wrapper_end', 10 );
}
add_action( 'after_setup_theme', 'my_et_woocommerce_custom_sidebar', 50 );


/* Don't include this line if your child theme functions.php already includes it */ ?>

Nice, dude! I was looking for this everywhere.

I had to add an echo before and after your dynamic_sidebar() call to include a div with a id of 'sidebar'.

I'll post my CSS I'm about to create if I get around to it soon.