In the saved `erp` schema:

- Constraint: `payment_customer_fk`
- Source table: `sales.payment`
- Target table: `crm.customer`
- Ordered column pair: `customer_id` → `id`
- Target in scan scope: **Yes**

**No**, this declared FK does not point to `legacy.customer.id`; it points to `crm.customer.id`.
