Jean-Francois

Problem:
The client is developing a site using SEOPress Pro and is unsure if the WPML SEO plugin is required for compatibility and what features might be missed if not used.
Solution:
We have confirmed that it is not required to use the WPML SEO plugin with SEOPress Pro. SEOPress handles multilingual SEO well on its own. You can refer to our documentation for optimizing WPML with SEOPress here: Optimize WPML multilingual sites for search engines using SEOPress.
If you are using the PRO version of SEOPress, you might need to contact the developers for a compatibility update. More details can be found in this support forum post: WPML forum discussion.

If this solution does not apply to your case, or if it seems outdated, we recommend opening a new support ticket. We also highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. For further assistance, please visit our support forum: WPML support forum.