[Resolved] Automatically translate HTML content of Shortcoder texts

Thank you for waiting.

After reviewing your requirements, I've got a simpler solution that will allow you to save reusable content blocks, without using the Shortcoder plugin, in a translation-friendly way.

1. From WP Admin -> Toolset -> Post Types, you can register a new custom post type and name it something like 'Contents'.

In this post type, you can add each instance of reusable content that you'd like to use on Product pages or pretty much anywhere on your website.

The content that you are currently saving in each shortcode, can be stored as the body/content of each post in this new post type.

The translation of this content would work the same way as you translate your other posts and pages and you'll only have to do it once for each of these posts.

2. Next, to load the content from these 'Contents' posts, you can register a new custom shortcode:

add_shortcode('custom-content-shortcode', 'custom_content_shortcode_func');
function custom_content_shortcode_func($atts) {
	$a = shortcode_atts( array(
		'id' => '',
	), $atts );

	$target_post = apply_filters( 'wpml_object_id', $a['id'], 'content' );
	$content = apply_filters( 'the_content', get_the_content(null, false, $target_post) );
	$content = wptexturize( $content );
	
	ob_start();
	echo $content;
	return ob_get_clean();
}

The above code snippet can be registered through Toolset's custom code feature ( ref: https://toolset.com/documentation/adding-custom-code/using-toolset-to-add-custom-code/ )

3. To load the content from one of these posts, in any of your products, you can use this newly registered shortcode, like this:

[custom-content-shortcode id='1234']

Where you'll replace, '1234' with the actual ID of the target 'Contents' post.

The shortcode will automatically pick the correct translation of the content, based on the language of the current product/post/page it is being used on.

I hope this helps and please let me know if you need further assistance.