Anyone familiar with editing code? Also – Handy piece of code for your website

He all,

I wondered if anyone can help me with this. I have a code snippet (php) that I use to instruct users not to put outside links in their product descriptions (feel free to use it yourselves).

What I need is the code to be edited to show a message in the inquiry section so vendors and customers can see that they are not allowed to share outside communication inforamtion like Wickr, email, facebook, whatsapp, wechat or and other messaging services and if they do, their accounts will be disabled. I can obviously write the required text, I just need the code edited for this to show in the internal messaging service within WCFM between the vendor and the cstomer..

Here is the original code:

add_filter( 'wcfm_product_manage_fields_content', function( $content_fields, $product_id, $product_type ) {
	if( isset( $content_fields['excerpt'] ) ) {
		$content_fields['excerpt']['desc'] = 'Please do not add outside links to your product pages. This is not allowed!';
	}
	if( isset( $content_fields['description'] ) ) {
		$content_fields['description']['desc'] = 'Please do not add outside links to your product pages. This is not allowed!';
	}
	return $content_fields;
}, 50, 3 );

Thank you so much in advance