Drupal 7, set permissions programality.

skg_generate_product_types.module

  $perms = array(
    // Node.
    "create $bundle_name content",
    "edit own $bundle_name content",
    "edit any $bundle_name content",
    "delete own $bundle_name content",
    "delete any $bundle_name content",

    // Commerce.
    "create commerce_product entities of bundle $bundle_name",
    "edit own commerce_product entities of bundle $bundle_name",
    "edit any commerce_product entity of bundle $bundle_name",
    "view own commerce_product entities of bundle $bundle_name",
    "view any commerce_product entity of bundle $bundle_name",
  );

  $manager_rids = array(
    'manager' => 4,
    'store_manager' => 7,
  );

  foreach ($manager_rids as $rid) {
    user_role_grant_permissions($rid, $perms);
  }