diff --git a/modules/account_invoice/invoice.py b/modules/account_invoice/invoice.py
index ffa70d76f6..c6abbe53a4 100644
--- a/modules/account_invoice/invoice.py
+++ b/modules/account_invoice/invoice.py
@@ -3054,19 +3054,27 @@ class InvoiceLine(sequence_ordered(), ModelSQL, ModelView, TaxableMixin):
     def get_rec_name(self, name):
         pool = Pool()
         Lang = pool.get('ir.lang')
-        if self.product:
+        name = self.product.rec_name if self.product else self.summary
+        if not name and self.account:
+            name = self.account.rec_name
+
+        if self.type == 'line':
             lang = Lang.get()
-            prefix = (lang.format_number_symbol(
-                self.quantity or 0, self.unit, digits=self.unit.digits)
-                + ' %s' % self.product.rec_name)
-        elif self.account:
-            prefix = self.account.rec_name
-        else:
-            prefix = '(%s)' % self.id
+            if self.unit:
+                quantity = lang.format_number_symbol(
+                    self.quantity or 0, self.unit, digits=self.unit.digits)
+            else:
+                quantity = lang.format_number(self.quantity or 0)
+            if name:
+                name = f'{quantity} {name}'
+            else:
+                name = quantity
+        elif not name:
+            name = f'({self.id})'
+
         if self.invoice:
-            return '%s @ %s' % (prefix, self.invoice.rec_name)
-        else:
-            return prefix
+            name = f'{name} @ {self.invoice.rec_name}'
+        return name
 
     @classmethod
     def search_rec_name(cls, name, clause):
@@ -3079,6 +3087,7 @@ class InvoiceLine(sequence_ordered(), ModelSQL, ModelView, TaxableMixin):
             ('invoice.rec_name', *clause[1:]),
             ('product.rec_name', *clause[1:]),
             ('account.rec_name', *clause[1:]),
+            ('summary', *clause[1:]),
             ]
 
     @classmethod
diff --git a/modules/purchase/purchase.py b/modules/purchase/purchase.py
index d0d0c49ed4..d8e1553047 100644
--- a/modules/purchase/purchase.py
+++ b/modules/purchase/purchase.py
@@ -2135,13 +2135,22 @@ class Line(sequence_ordered(), ModelSQL, ModelView):
     def get_rec_name(self, name):
         pool = Pool()
         Lang = pool.get('ir.lang')
-        if self.product:
+        name = self.product.rec_name if self.product else self.summary
+        if self.type == 'line':
             lang = Lang.get()
-            return (lang.format_number_symbol(
+            if self.unit:
+                quantity = lang.format_number_symbol(
                     self.quantity or 0, self.unit, digits=self.unit.digits)
-                + ' %s @ %s' % (self.product.rec_name, self.purchase.rec_name))
-        else:
-            return self.purchase.rec_name
+            else:
+                quantity = lang.format_number(self.quantity or 0)
+            if name:
+                name = f'{quantity} {name}'
+            else:
+                name = quantity
+        elif not name:
+            name = f'({self.id})'
+
+        return f'{name} @ {self.purchase.rec_name}'
 
     @classmethod
     def search_rec_name(cls, name, clause):
@@ -2153,6 +2162,7 @@ class Line(sequence_ordered(), ModelSQL, ModelView):
         return [bool_op,
             ('purchase.rec_name', *clause[1:]),
             ('product.rec_name', *clause[1:]),
+            ('summary', *clause[1:]),
             ]
 
     @classmethod
diff --git a/modules/sale/sale.py b/modules/sale/sale.py
index e15c594630..c03fdb42d2 100644
--- a/modules/sale/sale.py
+++ b/modules/sale/sale.py
@@ -2287,13 +2287,22 @@ class SaleLine(TaxableMixin, sequence_ordered(), ModelSQL, ModelView):
     def get_rec_name(self, name):
         pool = Pool()
         Lang = pool.get('ir.lang')
-        if self.product:
+        name = self.product.rec_name if self.product else self.summary
+        if self.type == 'line':
             lang = Lang.get()
-            return (lang.format_number_symbol(
+            if self.unit:
+                quantity = lang.format_number_symbol(
                     self.quantity or 0, self.unit, digits=self.unit.digits)
-                + ' %s @ %s' % (self.product.rec_name, self.sale.rec_name))
-        else:
-            return self.sale.rec_name
+            else:
+                quantity = lang.format_number(self.quantity or 0)
+            if name:
+                name = f'{quantity} {name}'
+            else:
+                name = quantity
+        elif not name:
+            name = f'({self.id})'
+
+        return f'{name} @ {self.sale.rec_name}'
 
     @classmethod
     def search_rec_name(cls, name, clause):
@@ -2305,6 +2314,7 @@ class SaleLine(TaxableMixin, sequence_ordered(), ModelSQL, ModelView):
         return [bool_op,
             ('sale.rec_name', *clause[1:]),
             ('product.rec_name', *clause[1:]),
+            ('summary', *clause[1:]),
             ]
 
     @classmethod