get( \Magento\Store\Model\StoreManagerInterface::class )->getWebsite(); $storeId = $website->getDefaultStore()->getId(); $entityTypeModel = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create( \Magento\Eav\Model\Entity\Type::class )->loadByCode( $entityType ); /** @var \Magento\Eav\Model\Entity\Store $entityStore */ $entityStore = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create( \Magento\Eav\Model\Entity\Store::class )->loadByEntityStore( $entityTypeModel->getId(), $storeId ); $entityStore->setEntityTypeId($entityTypeModel->getId()); $entityStore->setStoreId($storeId); $entityStore->setIncrementPrefix($prefix); $entityStore->save(); } }