diff -u b/migration_templates/d6_ubercart_store.yml b/migration_templates/d6_ubercart_store.yml
--- b/migration_templates/d6_ubercart_store.yml
+++ b/migration_templates/d6_ubercart_store.yml
@@ -28,6 +28,14 @@
   # Bundle
   type: 'constants/type'
   name: uc_store_name
+  uid:
+    -
+      plugin: default_value
+      default_value: 1
+    -
+      plugin: migration_lookup
+      migration: d6_user
+
   default_currency: uc_currency_code
   mail: uc_store_email
   # Country code is required. If is it null none of the address fields are saved.
diff -u b/src/Plugin/migrate/source/ubercart/Store.php b/src/Plugin/migrate/source/ubercart/Store.php
--- b/src/Plugin/migrate/source/ubercart/Store.php
+++ b/src/Plugin/migrate/source/ubercart/Store.php
@@ -18,6 +18,12 @@
    * {@inheritdoc}
    */
   public function prepareRow(Row $row) {
+    $store_owner = $row->getSourceProperty('uc_store_owner');
+    $query = $this->select('users', 'u')
+      ->fields('u', ['uid'])
+      ->condition('name', $store_owner);
+    $uid = $query->execute()->fetchField();
+    $row->setSourceProperty('uid', $uid);
     $country = $row->getSourceProperty('uc_store_country');
     // Get the country iso code 2 for this country.
     $query = $this->select('uc_countries', 'ucc')
diff -u b/tests/src/Kernel/d6/Ubercart/StoreTest.php b/tests/src/Kernel/d6/Ubercart/StoreTest.php
--- b/tests/src/Kernel/d6/Ubercart/StoreTest.php
+++ b/tests/src/Kernel/d6/Ubercart/StoreTest.php
@@ -25,12 +25,7 @@
   protected function setUp() {
     parent::setUp();
     $this->installEntitySchema('commerce_store');
-    $this->executeMigrations([
-      'd6_filter_format',
-      'd6_user_role',
-      'd6_user',
-      'd6_ubercart_store'
-    ]);
+    $this->migrateStore();
   }
 
   /**
@@ -45,6 +40,7 @@
     $this->assertSame('awesome_stuff@example.com', $store->getEmail());
     $this->assertSame('NZD', $store->getDefaultCurrencyCode());
     $this->assertSame('online', $store->bundle());
+    $this->assertSame('1', $store->getOwnerId());
 
     $address = $store->getAddress();
     $this->assertInstanceOf(AddressItem::class, $address);
only in patch2:
unchanged:
--- a/migration_templates/d6_ubercart_product.yml
+++ b/migration_templates/d6_ubercart_product.yml
@@ -26,9 +26,10 @@ process:
   changed: changed
   # Fills in variation id from stubs created in product variation migration.
   'variations/target_id':
-    plugin: migration
+    plugin: migration_lookup
     migration: d6_ubercart_product_variation
     source: nid
+  stores/target_id: stores
 destination:
   plugin: entity:commerce_product
 migration_dependencies:
only in patch2:
unchanged:
--- a/migration_templates/d6_ubercart_product_variation.yml
+++ b/migration_templates/d6_ubercart_product_variation.yml
@@ -25,3 +25,6 @@ process:
   changed: changed
 destination:
   plugin: entity:commerce_product_variation
+migration_dependencies:
+  required:
+    - d6_ubercart_store
only in patch2:
unchanged:
--- a/src/Plugin/migrate/source/ubercart/d6/Product.php
+++ b/src/Plugin/migrate/source/ubercart/d6/Product.php
@@ -16,25 +16,6 @@ use Drupal\migrate\Row;
 class Product extends SqlBase {
 
   /**
-   * The default store.
-   *
-   * @var \Drupal\commerce_store\Entity\StoreInterface
-   */
-  protected $defaultStore;
-
-  /**
-   * {@inheritdoc}
-   */
-  public function __construct(array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration, StateInterface $state) {
-    parent::__construct($configuration, $plugin_id, $plugin_definition, $migration, $state);
-
-    $this->defaultStore = \Drupal::service('commerce_store.default_store_resolver')->resolve();
-    if (!$this->defaultStore) {
-      throw new MigrateException('You must have a store saved in order to import products.');
-    }
-  }
-
-  /**
    * {@inheritdoc}
    */
   public function query() {
@@ -88,9 +69,9 @@ class Product extends SqlBase {
     //  ->fetchCol();
     // $row->setSourceProperty('images', $image_ids);
     // @codingStandardsIgnoreEnd
-    $row->setDestinationProperty('stores', [
-      'target_id' => $this->defaultStore->id(),
-    ]);
+
+    // Assume an id of 1 because there is only store in Ubercart by default.
+    $row->setSourceProperty('stores', 1);
     $row->setSourceProperty('name', str_replace(' ', '_', strtolower($row->getSourceProperty('name'))));
 
     return parent::prepareRow($row);
only in patch2:
unchanged:
--- a/tests/src/Kernel/d6/Ubercart/OrderItemTest.php
+++ b/tests/src/Kernel/d6/Ubercart/OrderItemTest.php
@@ -34,12 +34,9 @@ class OrderItemTest extends Ubercart6TestBase {
     $this->installEntitySchema('commerce_order_item');
     $this->installConfig(['commerce_order']);
     $this->installConfig(['commerce_product']);
-    $this->createDefaultStore();
+    $this->migrateStore();
     $this->startCollectingMessages();
     $this->executeMigrations([
-      'd6_filter_format',
-      'd6_user_role',
-      'd6_user',
       'd6_ubercart_billing_profile',
       'd6_ubercart_order',
       'd6_ubercart_product_variation',
only in patch2:
unchanged:
--- a/tests/src/Kernel/d6/Ubercart/OrderTest.php
+++ b/tests/src/Kernel/d6/Ubercart/OrderTest.php
@@ -32,7 +32,6 @@ class OrderTest extends Ubercart6TestBase {
     $this->installEntitySchema('commerce_order');
     $this->installEntitySchema('commerce_order_item');
     $this->installConfig(['commerce_order']);
-    $this->createDefaultStore();
     $this->startCollectingMessages();
     $this->executeMigrations([
       'd6_filter_format',
only in patch2:
unchanged:
--- a/tests/src/Kernel/d6/Ubercart/ProductTest.php
+++ b/tests/src/Kernel/d6/Ubercart/ProductTest.php
@@ -30,7 +30,7 @@ class ProductTest extends Ubercart6TestBase {
     $this->installEntitySchema('commerce_product_variation');
     $this->installEntitySchema('commerce_product');
     $this->installConfig(['commerce_product']);
-    $this->createDefaultStore();
+    $this->migrateStore();
     $this->executeMigrations([
       'd6_ubercart_product_variation',
       'd6_ubercart_product',
only in patch2:
unchanged:
--- a/tests/src/Kernel/d6/Ubercart/ProductVariationTest.php
+++ b/tests/src/Kernel/d6/Ubercart/ProductVariationTest.php
@@ -30,7 +30,7 @@ class ProductVariationTest extends Ubercart6TestBase {
     $this->installEntitySchema('commerce_product_variation');
     $this->installEntitySchema('commerce_product');
     $this->installConfig(['commerce_product']);
-    $this->createDefaultStore();
+    $this->migrateStore();
     $this->executeMigrations([
       'd6_ubercart_product_variation',
       'd6_ubercart_product',
only in patch2:
unchanged:
--- a/tests/src/Kernel/d6/Ubercart/Ubercart6TestBase.php
+++ b/tests/src/Kernel/d6/Ubercart/Ubercart6TestBase.php
@@ -44,29 +44,21 @@ abstract class Ubercart6TestBase extends MigrateDrupal6TestBase {
   }
 
   /**
+   * Executes store migrations.
+   */
+  protected function migrateStore() {
+    $this->createCurrency();
+    $this->migrateUsers(FALSE);
+    $this->executeMigration('d6_ubercart_store');
+  }
+
+  /**
    * Creates a default store.
    */
-  protected function createDefaultStore() {
+  protected function createCurrency() {
     $currency_importer = \Drupal::service('commerce_price.currency_importer');
-    /** @var \Drupal\commerce_store\StoreStorage $store_storage */
-    $store_storage = \Drupal::service('entity_type.manager')->getStorage('commerce_store');
-
     $currency_importer->import('USD');
     $currency_importer->import('NZD');
-    $store_values = [
-      'type' => 'default',
-      'uid' => 1,
-      'name' => 'Demo store',
-      'mail' => 'admin@example.com',
-      'address' => [
-        'country_code' => 'US',
-      ],
-      'default_currency' => 'USD',
-    ];
-    /** @var \Drupal\commerce_store\Entity\StoreInterface $store */
-    $store = $store_storage->create($store_values);
-    $store->save();
-    $store_storage->markAsDefault($store);
   }
 
 }