diff --git a/addons/mrp/tests/common.py b/addons/mrp/tests/common.py
index 96224ab8ecf..83f5e407b49 100644
--- a/addons/mrp/tests/common.py
+++ b/addons/mrp/tests/common.py
@@ -93,9 +93,11 @@ class TestMrpCommon(common2.TestStockCommon):
             notification_type='inbox',
             groups='mrp.group_mrp_manager, stock.group_stock_user, mrp.group_mrp_byproducts, uom.group_uom',
         )
-        # Required for `product_uom_id` to be visible in the view
-        # This class is used by a lot of tests which sets `product_uom_id` on `mrp.production`
-        cls.env.user.groups_id += cls.env.ref('uom.group_uom')
+        # Both groups below are required to make fields `product_uom_id` and
+        # `workorder_ids` to be visible in the view of `mrp.production`. The
+        # field `product_uom_id` must be set by many tests, and subviews of
+        # `workorder_ids` must be present in many tests to create records.
+        cls.env.user.groups_id += cls.env.ref('uom.group_uom') + cls.env.ref('mrp.group_mrp_routings')
 
         cls.workcenter_1 = cls.env['mrp.workcenter'].create({
             'name': 'Nuclear Workcenter',
diff --git a/addons/mrp_account/tests/test_analytic_account.py b/addons/mrp_account/tests/test_analytic_account.py
index 10c1dc3de02..82295ac8364 100644
--- a/addons/mrp_account/tests/test_analytic_account.py
+++ b/addons/mrp_account/tests/test_analytic_account.py
@@ -9,7 +9,13 @@ class TestMrpAnalyticAccount(TransactionCase):
     @classmethod
     def setUpClass(cls):
         super().setUpClass()
-        cls.env.user.write({'groups_id': [(4, cls.env.ref('analytic.group_analytic_accounting').id),]})
+        # The group 'mrp.group_mrp_routings' is required to make the field
+        # 'workorder_ids' visible in the view of 'mrp.production'. The subviews
+        #  of `workorder_ids` must be present in many tests to create records.
+        cls.env.user.groups_id += (
+            cls.env.ref('analytic.group_analytic_accounting')
+            + cls.env.ref('mrp.group_mrp_routings')
+        )
 
         cls.analytic_plan = cls.env['account.analytic.plan'].create({
             'name': 'Plan',