diff --git a/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js b/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js
new file mode 100644
index 000000000..49f45ab2d
--- /dev/null
+++ b/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js
@@ -0,0 +1,126 @@
+import {paypalAddressToWc} from "../../../../../ppcp-blocks/resources/js/Helper/Address.js";
+import {convertKeysToSnakeCase} from "../../../../../ppcp-blocks/resources/js/Helper/Helper.js";
+
+/**
+ * Handles the shipping option change in PayPal.
+ *
+ * @param data
+ * @param actions
+ * @param config
+ * @returns {Promise<void>}
+ */
+export const handleShippingOptionsChange = async (data, actions, config) => {
+    try {
+        const shippingOptionId = data.selectedShippingOption?.id;
+
+        if (shippingOptionId) {
+            await fetch(config.ajax.update_customer_shipping.shipping_options.endpoint, {
+                method: 'POST',
+                credentials: 'same-origin',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'X-WC-Store-API-Nonce': config.ajax.update_customer_shipping.wp_rest_nonce,
+                },
+                body: JSON.stringify({
+                    rate_id: shippingOptionId,
+                })
+            })
+            .then(response => {
+                return response.json();
+            })
+            .then(cardData => {
+                const shippingMethods = document.querySelectorAll('.shipping_method');
+
+                shippingMethods.forEach(function(method) {
+                    if (method.value === shippingOptionId) {
+                        method.checked = true;
+                    }
+                });
+            })
+        }
+
+        const res = await fetch(config.ajax.update_shipping.endpoint, {
+            method: 'POST',
+            credentials: 'same-origin',
+            body: JSON.stringify({
+                nonce: config.ajax.update_shipping.nonce,
+                order_id: data.orderID,
+            })
+        });
+
+        const json = await res.json();
+
+        if (!json.success) {
+            throw new Error(json.data.message);
+        }
+    } catch (e) {
+        console.error(e);
+
+        actions.reject();
+    }
+};
+
+/**
+ * Handles the shipping address change in PayPal.
+ *
+ * @param data
+ * @param actions
+ * @param config
+ * @returns {Promise<void>}
+ */
+export const handleShippingAddressChange = async (data, actions, config) => {
+    try {
+        const address = paypalAddressToWc(convertKeysToSnakeCase(data.shippingAddress));
+
+        // Retrieve current cart contents
+        await fetch(config.ajax.update_customer_shipping.shipping_address.cart_endpoint)
+            .then(response => {
+                return response.json();
+            })
+            .then(cartData => {
+                // Update shipping address in the cart data
+                cartData.shipping_address.address_1 = address.address_1;
+                cartData.shipping_address.address_2 = address.address_2;
+                cartData.shipping_address.city = address.city;
+                cartData.shipping_address.state = address.state;
+                cartData.shipping_address.postcode = address.postcode;
+                cartData.shipping_address.country = address.country;
+
+                // Send update request
+                return fetch(config.ajax.update_customer_shipping.shipping_address.update_customer_endpoint, {
+                    method: 'POST',
+                    credentials: 'same-origin',
+                    headers: {
+                        'Content-Type': 'application/json',
+                        'X-WC-Store-API-Nonce': config.ajax.update_customer_shipping.wp_rest_nonce,
+                    },
+                    body: JSON.stringify({
+                        shipping_address: cartData.shipping_address,
+                    })
+                }).then(function (res) {
+                    return res.json();
+                }).then(function (customerData) {
+                    jQuery(".cart_totals .shop_table").load(location.href + " " + ".cart_totals .shop_table" + ">*", "");
+                })
+            })
+
+        const res = await fetch(config.ajax.update_shipping.endpoint, {
+            method: 'POST',
+            credentials: 'same-origin',
+            body: JSON.stringify({
+                nonce: config.ajax.update_shipping.nonce,
+                order_id: data.orderID,
+            })
+        });
+
+        const json = await res.json();
+
+        if (!json.success) {
+            throw new Error(json.data.message);
+        }
+    } catch (e) {
+        console.error(e);
+
+        actions.reject();
+    }
+};