Remove a shipping method based on value

I am currently using ZC 1.3.7 and have 3 methods of shipping - flat rate, next day and overseas.

Is it possible to remove one of the options from the customers choice (the flat rate) if the order is above a certain value.
ie to just offer next day and overseas.

Edit the Flat Rate flat shipping module and change:

      // disable only when entire cart is free shipping
      if (zen_get_shipping_enabled($this->code)) {
        $this->enabled = ((MODULE_SHIPPING_FLAT_STATUS == 'True') ? true : false);
      }

to read:

      // disable only when entire cart is free shipping
      if (zen_get_shipping_enabled($this->code)) {
        $this->enabled = ((MODULE_SHIPPING_FLAT_STATUS == 'True') ? true : false);
      }

      global $cart;
      if (IS_ADMIN_FLAG == false && $_SESSION['cart']->show_total() >= 75.00) {
        $this->enabled = false;
      }

where 75.00 is the amount to turn off the shipping module at ...

The IS_ADMIN_FLAG is used so that the module works on the Admin ...

Thank you Linda, that worked perfectly.

Thanks for the update that this worked for you ... :smile:

You can also disable the flat rate based on weight. Suppose you want to disable flat rate shipping on orders over 5 lbs.

You need to edit
/includes/modules/shipping/flat.php

You would insert this code just below the code that disables the module if entire cart is free shipping.

// disable if the weight is over 5lbs
global $cart;
$shipWeight = $_SESSION['cart']->show_weight();
if (IS_ADMIN_FLAG == false && $shipWeight >= 5.00) {
	$this->enabled = false;
}

It's too bad these modules cannot be changed via overrides. Or can they?

There are not overrides for the shipping modules but you can always clone a shipping module ...

NOTE: be sure to test new shipping modules or changes in both the Catalog and Admin to ensure that they run properly ...

and what is the code if I would disable the modules with weight < 5 and total > 50 ?

global $cart;
$shipWeight = $_SESSION['cart']->show_weight();
$shipTotal = $_SESSION['cart']->show_total();
if (IS_ADMIN_FLAG == false && ($shipWeight < 5.00 and $shipTotal > 50) {
	$this->enabled = false;
}