Choose Which Custom Fields Polylang Copies to Translations
Tells Polylang to copy (and keep in sync) extra custom fields when you create or update a translation, and to stop copying fields that should differ per language.
Snippet Library
Multilingual snippets for WordPress
Snippets for multilingual sites: language switchers, translated strings and per-language behavior with WPML, Polylang and similar plugins. For sites that serve readers in more than one language.
Copy Custom Fields to All WPML Translations on Save
Copies the custom fields you list from an original post to all of its WPML translations whenever the original is saved, for values like prices, SKUs or coordinates that never change between languages.