Problem:
The user needed to change the slug of an archive page from "autoclave-comparator" to "comparador-de-autoclaves" and later wanted to translate this slug into multiple languages using WPML. However, she faced difficulties in finding the setting to change the slug and translating it for different language versions.
Solution:
We instructed them to change the slug by editing the custom post type in Toolset under the Rewrite settings. Later, when they wanted to translate the archive slug for different languages, we explained that WPML only allows the archive slug to be translatable if it matches the 'rewrite['slug']' or the custom post type name slug. This means the archive slug must be the same as the slug for single posts or the post type name for it to be translatable in WPML.
Relevant Documentation:
https://wpml.org/documentation/support/translating-slugs-for-custom-post-type-archives/