I am also using your “WooCommerce Minimum and Maximum Orders” plugin and wish to have different minimum/maximum amounts depending on whether the customer has a valid VAT number or not?

This refers to our “WooCommerce Minimum and Maximum Orders” plugin, found here, and not any other similarly-named plugin. This can be done using a code fragment. You should ask your PHP developer to adapt this code fragment to your particular situation. The example below will change the minimum purchase amount to £145 (assuming your store uses British pounds sterling) if the customer is not VAT exempt, and if the chosen shipping method has a WooCommerce identifier of legacy_local_pickup :

<?php

add_filter('woocommerce_minima_maxima_settings', function($settings, $for_frontend) {
	
	// Only alter the settings when making front-end decisions
	if (!$for_frontend) return $settings;
	
	/**
	 * e.g.
	 * 
	 * Array
	 * (
	 *    [allowallexcluded] => 1
	 *    [count_all_if_any_included] => 1
	 *    [minamount] => Array
	 *        (
	 *            [default] => 15
	 *            [flat_rate__I-2] => 40
	 *            [flat_rate__I-3] => 30
	 *            [flat_rate__I-6] => 15
	 *            [free_shipping] => 15
	 *            [local_pickup__I-5] => 20
	 *            [legacy_international_delivery] => 100
	 *            [legacy_local_pickup] => 15
	 *     )
	 *    ...
	 */
	
	$wc = WC();
	
	$customer = $wc->customer;
	
	if (!is_object($customer)) return $settings;
	
	if (!$customer->is_vat_exempt()) {
		foreach (array_keys($settings['minamount']) as $key) {
			// On the following line, change the expression to match the shipping methods you are targetting. This uses the slugs, not the visible names in the user interface.
			if (!preg_match('/^legacy_local_pickup$/', $key)) continue;
			$settings['minamount'][$key] = 145;
		}
	}
	
	return $settings;
}, 10, 2);

Posted in: WooCommerce European (EU/UK/Norway/Switzerland) VAT Compliance