you want to upload image so we create a js file and write some code in functions.php.

But first we create custom upload meta field.

In your function.php or where you write a code for register custom taxonomy and write this code:

First we create custom meta term field

add_action('product_categories_add_form_fields', 'add_term_image', 10, 2);
function add_term_image($taxonomy){
    ?>
    

        Upload and Image
        
        
    
    
Same as above write your taxonomy name after created_ in add_action Like created_product_categories

Now we create meta term field for edit

add_action('product_categories_edit_form_fields', 'edit_image_upload', 10, 2);
function edit_image_upload($term, $taxonomy) {
    // get current group
    $txt_upload_image = get_term_meta($term->term_id, 'term_image', true);
?>
    

        Upload and Image