diff --git a/modules/purchase_trade/lot.py b/modules/purchase_trade/lot.py
index f9252d7..060bd49 100755
--- a/modules/purchase_trade/lot.py
+++ b/modules/purchase_trade/lot.py
@@ -1336,7 +1336,11 @@ class LotQt(
                 Case((lp.id>0, lp.lot_himself),else_=ls.lot_himself).as_('r_lot_himself'),
                 Case((lp.id>0, lp.lot_container),else_=ls.lot_container).as_('r_lot_container'),
                 Case((lp.id>0, lp.line),else_=None).as_('r_line'),
-                Case((pl.id>0, pl.del_period),else_=None).as_('r_del_period'),
+                Case(
+                    (((lqt.lot_s != None) & (lqt.lot_p == None) & (sl.id > 0)),
+                        sl.del_period),
+                    else_=Case((pl.id>0, pl.del_period),else_=None)
+                ).as_('r_del_period'),
                 Case((pu.id>0, pu.id),else_=None).as_('r_purchase'),
                 Case((sa.id>0, sa.id),else_=None).as_('r_sale'),
                 Case((ls.id>0, ls.sale_line),else_=None).as_('r_sale_line'),