diff --git a/addons/purchase_stock/models/stock_rule.py b/addons/purchase_stock/models/stock_rule.py
index 829d67b4ad8..b10cd241544 100644
--- a/addons/purchase_stock/models/stock_rule.py
+++ b/addons/purchase_stock/models/stock_rule.py
@@ -96,7 +96,9 @@ class StockRule(models.Model):
                 vals = rules[0]._prepare_purchase_order(company_id, origins, [p.values for p in procurements])
                 # The company_id is the same for all procurements since
                 # _make_po_get_domain add the company in the domain.
-                po = self.env['purchase.order'].with_user(SUPERUSER_ID).with_company(company_id).sudo().create(vals)
+                # We use SUPERUSER_ID since we don't want the current user to be follower of the PO.
+                # Indeed, the current user may be a user without access to Purchase, or even be a portal user.
+                po = self.env['purchase.order'].with_company(company_id).with_user(SUPERUSER_ID).create(vals)
             else:
                 # If a purchase order is found, adapt its `origin` field.
                 if po.origin: