# Duplicate Customer Fix - Summary

## Problem
Customer **100299353@qq.com** (client_id: 687) had 2 subscriptions in Stripe but the portal only showed 1.

**Root Cause:** The same customer was created twice in Stripe with different customer IDs but the same client_id:
- `cus_TNl0YczPSqpwUQ` with metadata `client_id: 687`
- `cus_TNkxfKxpMzTFOd` with metadata `client_id: 687`

## Solution
Updated **5 PHP backend files** to query **ALL** Stripe customers with matching email + client_id, instead of just the first one found.

## Files Changed

1. ✅ `/var/www/pay/stripe-check-subscriptions.php` - Show all subscriptions
2. ✅ `/var/www/pay/stripe-cancel-subscriptions.php` - Cancel all subscriptions
3. ✅ `/var/www/pay/stripe-get-payment-methods.php` - Show all payment methods
4. ✅ `/var/www/pay/stripe-get-invoices.php` - Show all invoices
5. ✅ `/var/www/pay/stripe-get-charges.php` - Show all charges/receipts

## How to Test

### Step 1: Refresh the Portal
1. Log in as customer **100299353@qq.com**
2. Navigate to the **Billing** page
3. Check the **Active Subscriptions** section

### Expected Result
You should now see **2 active subscriptions**:
- Numberify Port-In (949) 820-8886
- Numberify Port-In (949) 337-9025

### Step 2: Check Browser Console
Open the browser console (F12) and check the API response:

```javascript
{
  "success": true,
  "has_active_subscriptions": true,
  "subscription_count": 2,          // Should be 2 now (was 1 before)
  "customer_count": 2,               // NEW field
  "customer_ids": [                  // NEW field
    "cus_TNl0YczPSqpwUQ",
    "cus_TNkxfKxpMzTFOd"
  ],
  "subscriptions": [
    {
      "id": "sub_xxx",
      "customer_id": "cus_TNl0YczPSqpwUQ",  // NEW field
      // ... subscription details
    },
    {
      "id": "sub_yyy",
      "customer_id": "cus_TNkxfKxpMzTFOd",  // NEW field
      // ... subscription details
    }
  ]
}
```

### Step 3: Check Payment Logs
Monitor the logs to confirm both customers are being detected:

```bash
tail -f /var/www/pay/payment_log.log | grep CHECK-SUBS
```

Expected log entries:
```
[CHECK-SUBS] Total matching customers: 2
[CHECK-SUBS] Fetching subscriptions for customer: cus_TNl0YczPSqpwUQ
[CHECK-SUBS] Fetching subscriptions for customer: cus_TNkxfKxpMzTFOd
[CHECK-SUBS] Total active subscriptions from all customers: 2
```

## What Changed Technically

### Before
```php
// Only found ONE customer
foreach ($allCustomers->data as $cust) {
    if (isset($cust->metadata->client_id) && $cust->metadata->client_id == $clientId) {
        $customer = $cust;
        break;  // ❌ Stopped after first match
    }
}

// Only fetched from ONE customer
$subscriptions = \Stripe\Subscription::all([
    'customer' => $customer->id
]);
```

### After
```php
// Find ALL matching customers
$matchingCustomers = [];
foreach ($allCustomers->data as $cust) {
    if (isset($cust->metadata->client_id) && $cust->metadata->client_id == $clientId) {
        $matchingCustomers[] = $cust;  // ✅ Collect ALL matches
        // No break - continue searching
    }
}

// Fetch from ALL customers
$allSubscriptions = [];
foreach ($matchingCustomers as $customer) {
    $customerSubscriptions = \Stripe\Subscription::all([
        'customer' => $customer->id
    ]);
    // Combine all subscriptions
}
```

## Impact

### ✅ Benefits
- Portal now displays **all subscriptions** for customers with duplicate Stripe accounts
- **All invoices/receipts** from both customers are now visible
- **All payment methods** from both customers are now shown
- AutoPay cancellation will cancel **all subscriptions** across both customers
- No data loss or missing subscriptions

### ⚠️ Important Notes
- This is a **backward-compatible** change
- Existing customers with single Stripe accounts are **unaffected**
- Only impacts customers with duplicate Stripe customer records
- Response format now includes `customer_ids` and `customer_count` fields (optional, safe to ignore)

## Next Steps (Optional)

### 1. Prevent Future Duplicates
Update subscription creation code to check for existing customers before creating new ones. See `DUPLICATE_CUSTOMER_FIX.md` for details.

### 2. Merge Existing Duplicates
Optionally consolidate the two customer records into one. This is not urgent since the portal now handles duplicates correctly. See `DUPLICATE_CUSTOMER_FIX.md` for merge instructions.

## Documentation
For detailed information, see:
- `/var/www/pay/DUPLICATE_CUSTOMER_FIX.md` - Complete technical documentation
- `/var/www/pay/CHANGES_SUMMARY.md` - This quick reference (you are here)

## Date
November 11, 2025



