'decimal:2', 'outstanding_balance' => 'decimal:2', 'is_active' => 'boolean', ]; public function routeNotificationFor(string $channel, mixed $notification = null): ?string { return $this->whatsapp_number; } public function salesOrders() { return $this->hasMany(SalesOrder::class); } public function salesInvoices() { return $this->hasMany(SalesInvoice::class); } public function paymentReceipts() { return $this->hasMany(PaymentReceipt::class); } }