How to translate Yoast Seo

1 Set Title and Description in the original page

In this exemple, only the description is set to this post

2 - Configure Falang to support Yoast

In The falang > Settings > Translate options > Click on the pages options

3- Enable the yoast meta 

The metadesc, title and time for reading can be enabled.

if you don't see the title , you have to put a custom title in a original page.

4 - Translate the meta desc

The metadesc can be translated and other meta can be translated , you can use the help of tranlation service like google/azure.... to help you

5 - Sitemap

The sitemap are done by language , it's depends of you configuration but it's like

[www.mysite.com]/[languague slug]/page-sitemap.xml

For the main url of mysite.com with the default slug remove ex: english

[www.mysite.com]/page-sitemap.xml 

The french sitemap

[www.mysite.com]/fr/page-sitemap.xml

The german sitemap

[www.mysite.com]/de/page-sitemap.xml

If your site use plain url add the ?lang=[language slug] for the language sitemap

6 - Category description

Since Falang for Wordpress 1.3.65 it's possible to translate the category description 

You have to make an update in the wpml-config.xml from the yoast plugin

wp-content\plugins\wordpress-seo\wpml-config.xml

at the end you have to add the following code

            <key name="rssafter" />
        </key>
        <key name="wpseo_taxonomy_meta">
            <key name="product_cat" />
            <key name="category" />
        </key>
    </admin-texts>
</wpml-config>

After that in Falang > String translation you can make a filter by : wpseo_desc