This is really in answer to this (now closed) post from 1yr ago or so (“how do you display the product SKU on the frontend?”) – sharing just in case it helps anyone else exploring iThemes Exchange and related plugins.

The quick answer is to use the it_exchange_add_product_sku_get_feature() function. It’s first parameter is unused, the second parameter should be the post ID of the product you’re interested in. Quick example:

function ix_single_products_sku() {
	$sku = it_exchange_add_product_sku_get_feature( null, get_the_ID() );
	if ( ! empty( $sku ) ) print "<span class='sku'> $sku </span>";
}

add_action( 'it_exchange_content_product_after_product_info_loop', 'ix_single_products_sku' );

The above would display the SKU right below the Buy Now button. Of course, you could also quite easily switch to a different action, such as:

it_exchange_content_product_before_product_info_loop

https://www.ads-software.com/plugins/exchange-addon-add-product-sku/

How do I make the SKU display on the page ?
Thanks

https://www.ads-software.com/plugins/exchange-addon-add-product-sku/