diff --git a/sf_manufacturing/models/purchase_order.py b/sf_manufacturing/models/purchase_order.py
index 71e4e045..3e20a0a2 100644
--- a/sf_manufacturing/models/purchase_order.py
+++ b/sf_manufacturing/models/purchase_order.py
@@ -87,6 +87,14 @@ class PurchaseOrder(models.Model):
                     purchase.origin_sale_id = os_ids.id
                 elif len(os_ids) >= 2:
                     purchase.origin_sale_ids = os_ids.ids
+            elif 'IN' in purchase.origin:
+                sp_name_list = [name.strip() for name in purchase['origin'].split(',')]
+                os_ids = list({sp_id.sale_order_id.id for sp_id in self.env['stock.picking'].sudo().search([
+                    ('name', 'in', sp_name_list)])})
+                if len(os_ids) == 1:
+                    purchase.origin_sale_id = os_ids[0]
+                elif len(os_ids) >= 2:
+                    purchase.origin_sale_ids = os_ids
 
 
 class PurchaseOrderLine(models.Model):