Hello,
I know but I use joomla for the first time these two plugins. I would not make a mistake that would present a problem referencing ...
and I have a doubt and it's not clear to me

I work mod_rewritting via .htaccess

Jsitemap Pro:
So I, I think, correctly set Jsitemap pro; I created a sitemap main menu and I get such a kind of url: http://mon-domaine.com/alias-menu/alia-my-article.html

Sh404SEF:
I activated the plugin. I paid attention to parametrage with Jsitemap pro (Explanatory Note).
The URLs are generated following types: http://mon-domaine.com/alias-categorie-1/alias-catlegorie-2/alia-my-article.html
(Which is better in terms of referencing)

My question:
I am now left with 2 different urls pointing at herself location.
Is it okay to do like that?
Should we do a redirect url 303 "Jsitemap" to urls generated via "Sh404 sef?"
Should we write a canonical URL via sh404SEF?

I also have in my articles in relative urls under the model of Joomla (Jsitemap). Should we write them as urls "sh404SEF." example to understand me

<a href="/alias-menu/alia-my-article.html "> -> <a href="/alias-category-1/alias-catlegorie-2/alia-my-article.html">

I hope I ccompréhensible in my application. I know this is a bit beyond the scope of Jsitemap but it is related ...

PS: My English is not very good, be kind!