You did not really answer my question about more detail.
What I am assuming is that
- You load data into a field that can be selected
- Based on this selection you add choices to a second field or multiple other fields for selection
- Repeat if additional fields are dependent on the selection of the first field
I have some examples of doing this here https://github.com/Hube2/acf-dynamic-ajax-select-example
Basically what you are looking at is building a JavaScript/AJAX application that does the requests and population of choices in addition to adding PHP that loads the initial choices of the first field.
What I would do is that I would create a cusome post type to hold posts returned by the API and then I’d probably use a post object field to allow the user to select on of those posts rather than try to store all of this information in fields.
