setSalesChannel example

return $entity;
    }

    private function generateExportPreview(RequestDataBag $dataBag, Context $context): ?ProductExportResult
    {
        $salesChannelDomain = $this->getSalesChannelDomain($dataBag->get('salesChannelDomainId'), $context);
        $salesChannel = $this->getSalesChannel($dataBag->get('salesChannelId'), $context);

        $productExportEntity = $this->createEntity($dataBag);
        $productExportEntity->setSalesChannelDomain($salesChannelDomain);
        $productExportEntity->setStorefrontSalesChannelId($salesChannelDomain->getSalesChannelId());
        $productExportEntity->setSalesChannel($salesChannel);

        $exportBehavior = new ExportBehavior(true, true, true);

        return $this->productExportGenerator->generate($productExportEntity, $exportBehavior);
    }

    private function getSalesChannelDomain(string $salesChannelDomainId, Context $context): SalesChannelDomainEntity
    {
        $criteria = (new Criteria([$salesChannelDomainId]))
            ->addAssociation('language.locale')
            ->addAssociation('salesChannel');