Jairo Ochoa
This is the PHP that ACF generates:
'has_archive' => 'docs',
'rewrite' => array(
'slug' => 'doc',
),
To make it translatable it should be:
'has_archive' => _x( 'docs', 'slug', 'text-domain' ),
'rewrite' => array(
'slug' => _x( 'doc', 'slug', 'text-domain' )
),
It works if exists also:
add_filter('acf/settings/l10n_textdomain', 'custom_acf_settings_textdomain');
function custom_acf_settings_textdomain( $domain ) { return 'text-domain'; }