diff --git a/server.js b/server.js
index 7646c54..2c13c5d 100644
--- a/server.js
+++ b/server.js
@@ -169,8 +169,10 @@ app.post('/create-order', async (req, res) => {
                 customer: {
                     first_name: customerData.first_name,
                     last_name: customerData.last_name,
-                    email: customerData.email,
-                    phone: customerData.phone
+                    email: customerData.email
+                    // Note: phone is omitted from the customer profile block to prevent Shopify
+                    // "customer.phone_number has already been taken" 400 errors.
+                    // The phone number is still fully stored and used in billing_address and shipping_address.
                 },
                 billing_address: {
                     first_name: customerData.first_name,