The operation failed with an error. [400] Paramètre(s) invalide(s) : « acf » (error code: rest_invalid_param)

Hi

I would like to add a custom ACF field to an article. The problem is that it’s a bit of a special ACF field, since it’s a Taxonomy field and not text.

I get an error message when the result is letters; when it’s numbers I don’t get an error, but nothing is displayed on wordpress because it’s a Taxonomy.

I even tried [ ] instead of “ ”.