How to sync custom fields with media attachments

Hi!

To sync *all* custom fields you can just check the relevant option in Polylang settings. If you need to differentiate, then you have to do it programmatically. Have a look at https://polylang.wordpress.com/documentation/documentation-for-developers/filter-reference/#pll_copy_post_metas

Thank you very much, the function workS perfectly.

Your plugin is very good and your support too.

On your site I can’t find a way to make a donation, you have a link to Paypal or similar?

There is a link in Polylang page where you defined the languages and also in author section in the right sidebar of the plugin homepage: https://www.ads-software.com/plugins/polylang/ (as for every plugins)