get category id

Go into products > Categories, click on one, and look in the address bar.

Thank you for your replied.
But I meant if I need to use parameter, please see below.

I need to write this function.

//Cash on pickup 10% off and minimum $35
function custom_wc_payment_discounts_min_order( $avaliable, $cart ) {
$subtotal = $cart->cart_contents_total;
$min_subtotal = 35;

if ( $min_subtotal <= $subtotal && $category_id != 108) {
return true;
}
return false;
}

How can I write the code to get $category_id ?

You need to do 2 things;

1 loop the cart items
2 for each cart item, get the product_cat terms https://codex.www.ads-software.com/Function_Reference/wp_get_object_terms and compare the returned ids.

Could you show me how to code?
I’m not expert in coding.

Many thanks!

I can look over what you code. This example is similar if you need a pointer https://stackoverflow.com/questions/22571887/checking-products-in-cart-based-on-category-name-woocommerce

If you need dev help, try jobs.wordpress.net

Ok, thanks.