southseact-3d 49747d08db fix: prevent duplicate Dodo customers and handle multiple subscriptions per email ...

Comprehensive fixes to prevent customer ID mismatches:

1. **Checkout creation now passes customer_id** (lines 13669, 13064, 13503):
   - All checkouts (subscription, topup, PAYG) now call ensureDodoCustomer() first
   - Pass existing customer_id to checkout body to prevent Dodo from creating duplicates
   - Added customerId to metadata for tracking

2. **Subscription confirmation validates customer consistency** (line 13843):
   - Logs warning when checkout returns different customer_id than stored
   - Tracks which customer_id was used in checkout metadata
   - Prevents silent customer ID overwrites

3. **ensureDodoCustomer handles multiple customers per email** (line 6774):
   - Logs warning when multiple customers found for same email
   - Checks ALL customers for active subscriptions
   - Selects customer with active subscriptions if multiple exist
   - Returns first customer only if no active subscriptions found

4. **Added missing return statements** (lines 12417, 12448):
   - Prevents double response errors after successful plan changes

This ensures that:
- New subscriptions use existing customers instead of creating duplicates
- Plan changes work correctly even with multiple subscriptions
- Customer ID mismatches are detected and logged
- The correct customer (one with active subscriptions) is always used

2026-02-12 12:06:49 +00:00

729 KiB

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