Problem:
The client has a custom post type called "Transaction" with an Advanced Custom Field of type Radio Button with options Yes and No. When using automatic translation, if the radio button is not selected in the original item, WPML incorrectly selects "Yes" in the translated version, allowing it to bypass required fields. This causes issues as the site relies on the Yes/No selection to determine if further fields should be present.
Solution:
We recommend setting all your groups to "Same fields across languages" in "ACF > Field Groups" to use the default configuration for each field type. This usually meets most clients' needs, with text fields being translatable and checkbox fields being copied.
If you need to fine-tune the translation preferences, switch to "Expert" mode for a particular group. You can then see and change the translation preference for each field.
You can find the recommended preferences for each field type here: Recommended Custom Fields Translation Preferences for ACF and WPML
