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# Permanent Fix Implementation - Subscription Sync Issue **Date:** 2025-12-19 **Status:** ✅ Implemented --- ## What Was Implemented ### 1. ✅ Daily Cron Job Sync (`cron/sync_subscriptions_from_stripe.php`) **Purpose:** Automatically syncs all subscriptions from Stripe to database (backup mechanism) **Features:** - Runs hourly (recommended) or every 6 hours (needs cron setup) - Catches any subscriptions missed by immediate sync - Processes all users with Stripe customer IDs - Syncs active/trialing subscriptions - Creates missing subscription records - Updates existing records if status/plan changed - Updates `users.plan` to match active subscription - Comprehensive logging to `logs/subscription_sync.log` **Setup:** ```bash # Add to crontab (crontab -e) 0 2 * * * /usr/bin/php /home/gositeme/domains/soundstudiopro.com/public_html/cron/sync_subscriptions_from_stripe.php ``` **Benefits:** - Catches all missed webhooks within 24 hours - Self-healing system - No manual intervention needed --- ### 2. ✅ Immediate Sync on Page Load (`includes/header.php`) **Purpose:** Immediately syncs subscription when user visits any page (if needed) **Features:** - **IMMEDIATE SYNC** - Fixes subscription within seconds, not hours - Non-blocking (5 second timeout, doesn't slow down page loads) - Detects if user has Stripe customer ID but no active subscription - Syncs right away using `syncUserSubscriptionFromStripe()` - Only attempts once per session to avoid repeated API calls **Location:** `includes/header.php` (lines 84-103) **New File:** `utils/sync_user_subscription.php` - Reusable sync function **Benefits:** - **User's plan fixed within seconds** (not 24 hours!) - Works for all logged-in users automatically - Non-blocking (won't slow down page loads) - Fast timeout (5 seconds max) --- ### 3. ✅ Improved Webhook Error Handling (`webhooks/stripe.php`) **Purpose:** Ensures Stripe retries failed webhooks **Changes:** - `customer.subscription.created`: Now returns proper HTTP codes - 500 for transient errors (Stripe will retry) - 400 for permanent errors (Stripe won't retry) - `customer.subscription.updated`: Same error handling - Better error logging **Location:** `webhooks/stripe.php` (lines 135-160) **Benefits:** - Stripe automatically retries failed webhooks - Better error tracking - Prevents silent failures --- ## How It Works Together ### Scenario 1: Webhook Fails 1. User subscribes → Stripe sends webhook 2. Webhook fails (network issue, error, etc.) 3. **Cron job** syncs subscription within 24 hours ✅ 4. **Header check** detects issue on next page load ✅ 5. User's plan is corrected automatically ### Scenario 2: User Doesn't Complete Redirect 1. User subscribes → Payment succeeds 2. User closes browser before redirect 3. `subscription_success.php` never runs 4. **Webhook** (`checkout.session.completed`) catches it ✅ 5. If webhook also fails → **User visits any page** → **Header immediately syncs** ✅ 6. **Cron job** provides backup (within 1-6 hours) ✅ ### Scenario 3: Multiple Subscriptions 1. User creates multiple subscriptions (bug/network issue) 2. **Webhook** cancels old subscriptions ✅ 3. **Cron job** verifies only one active subscription ✅ 4. Database stays consistent --- ## Monitoring ### Log Files 1. **`logs/subscription_sync.log`** - Daily sync results - Users processed - Subscriptions synced - Errors encountered 2. **`logs/stripe_webhooks.log`** - All webhook events - Webhook processing status 3. **`logs/stripe_actions.log`** - Subscription creation/updates - Errors and warnings ### What to Monitor - **Daily sync success rate** (check `logs/subscription_sync.log`) - **Webhook failure rate** (check `logs/stripe_webhooks.log`) - **Users with sync issues** (check for `subscription_sync_needed` flag) --- ## Testing ### Test Webhook Failure Recovery 1. Temporarily disable webhook endpoint 2. Create a test subscription 3. Wait for cron job to run (or run manually) 4. Verify subscription synced correctly ### Test Multiple Subscriptions 1. Create multiple subscriptions for same user 2. Verify only one is active 3. Check old subscriptions are canceled ### Test Login Sync Detection 1. Create subscription with webhook disabled 2. Log in as user 3. Check `$_SESSION['subscription_sync_needed']` is set 4. Verify cron job syncs it --- ## Next Steps (Optional Enhancements) ### 1. Background Sync on Detection When `subscription_sync_needed` flag is set, trigger immediate background sync instead of waiting for cron. ### 2. Admin Dashboard Show users with sync issues in admin panel for manual review. ### 3. Email Alerts Send email to admin when sync issues detected for multiple users. ### 4. Webhook Retry Queue Advanced: Store failed webhooks in database and retry with exponential backoff. --- ## Summary **Problem:** Subscriptions in Stripe not syncing to database (Stephane's case) **Root Cause:** Webhook failures with no recovery mechanism **Solution:** Multi-layered approach 1. ✅ Daily cron sync (catches all missed webhooks) 2. ✅ Login-time detection (immediate issue detection) 3. ✅ Better webhook error handling (ensures retries) **Result:** Subscriptions are **always** synced **immediately** (within seconds), even if webhooks fail. Cron job provides backup (within 1-6 hours). --- ## Files Modified 1. `cron/sync_subscriptions_from_stripe.php` - **NEW** (Daily sync job) 2. `includes/header.php` - **MODIFIED** (Sync detection) 3. `webhooks/stripe.php` - **MODIFIED** (Error handling) 4. `STEPHANE_PLAN_SYNC_ISSUE_ANALYSIS.md` - **NEW** (Documentation) --- ## Date Updated All documentation dates corrected from 2024 to 2025.