How to translate ACF
Falang can easily translate Advanced Custom Fields without the need for additional plugins.
In this documentation the company group field need to be translate

In this group field, only the intro image, city and country will be translated

It's necessary to set in Falang , the field who need to be translated, for this we go in Falang > Translate Options, on my test site all this ACF are stored for the CPT companies

The companies options need to be eddited

The options page display the list of all the acf field (they are stored in the meta of the) be carrefull for each field the field without the "_" need to be selected it's company_city and not _company_city

The same with company_country

and the intro image, not prefixed by company in acf

For the translation of this company , Falang > Translate Posts, We can filter by Company

The ACF field are visible on the Post transaltion page.
The inro image is an id, actyally just set the id you want for the translation, the company city don't need to be translated , just the country need to be translated in french

The company in the default language english

The french translation for the company , the acf field is translated.
