diff --git a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
index d0d7c408..1bd2db1c 100644
--- a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
+++ b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
@@ -360,8 +360,12 @@ namespace epee
       template< class t_type_stored, class t_type, class t_storage, typename cb_serialize>
       static bool serialize_ephemeral(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname, cb_serialize cb_s)
       {
-        t_type_stored a = cb_s(d);
-        return epee::serialization::selector<true>::serialize(a, stg, hparent_section, pname);
+        t_type_stored a = AUTO_VAL_INIT(a);
+        bool add_val = cb_s(d, a);
+        if (add_val)
+          return epee::serialization::selector<true>::serialize(a, stg, hparent_section, pname);
+        else
+          return true;
       }
 
     };
diff --git a/src/wallet/wallet2_base.h b/src/wallet/wallet2_base.h
index 4c88dc58..76fffc18 100644
--- a/src/wallet/wallet2_base.h
+++ b/src/wallet/wallet2_base.h
@@ -386,14 +386,16 @@ namespace tools
         return true;
       return false;
     }
-    static inline uint64_t transfer_details_base_to_amount(const transfer_details_base& tdb)
+    static inline bool transfer_details_base_to_amount(const transfer_details_base& tdb, uint64_t& val)
     {
-      return tdb.amount();
+      val = tdb.amount();
+      return true;
     }
     //----------------------------------------------------------------------------------------------------
-    static inline std::string transfer_details_base_to_tx_hash(const transfer_details_base& tdb)
+    static inline bool transfer_details_base_to_tx_hash(const transfer_details_base& tdb, std::string& val)
     {
-      return epee::string_tools::pod_to_hex(currency::get_transaction_hash(tdb.m_ptx_wallet_info->m_tx));
+      val = epee::string_tools::pod_to_hex(currency::get_transaction_hash(tdb.m_ptx_wallet_info->m_tx));
+      return true;
     }
 
 
diff --git a/src/wallet/wallet_public_structs_defs.h b/src/wallet/wallet_public_structs_defs.h
index ba276a0a..e81aaa87 100644
--- a/src/wallet/wallet_public_structs_defs.h
+++ b/src/wallet/wallet_public_structs_defs.h
@@ -154,7 +154,6 @@ namespace wallet_public
     std::vector<std::string> remote_addresses;  //optional
     std::vector<std::string> remote_aliases; //optional, describe only if there only one remote address
     std::vector<wallet_sub_transfer_info> subtransfers;
-    boost::optional<currency::asset_descriptor_operation> data_for_external_signing;
 
     //not included in streaming serialization
     uint64_t      fee = 0;
@@ -191,6 +190,8 @@ namespace wallet_public
       KV_SERIALIZE(remote_addresses)              DOC_DSCR("Remote addresses of this transfer(destination if it's outgoing transfer or sender if it's incoming transaction)")  DOC_EXMP_AUTO(1, "ZxBvJDuQjMG9R2j4WnYUhBYNrwZPwuyXrC7FHdVmWqaESgowDvgfWtiXeNGu8Px9B24pkmjsA39fzSSiEQG1ekB225ZnrMTBp")   DOC_END
       KV_SERIALIZE(remote_aliases)                DOC_DSCR("Aliases for remot addresses, of discovered")  DOC_EXMP_AUTO(1, "roger")    DOC_END
       KV_SERIALIZE(subtransfers)                  DOC_DSCR("Essential part of transfer entry: amounts that been transfered in this transaction grouped by asset id")  DOC_EXMP_AUTO(1)   DOC_END
+      
+      KV_SERIALIZE_EPHEMERAL_N(currency::asset_descriptor_operation, wallet_transfer_info_get_ado, "ado")   DOC_DSCR("\"Asset Descriptor Operation\" if it was present in transaction")   DOC_END
     END_KV_SERIALIZE_MAP()
 
     BEGIN_BOOST_SERIALIZATION()
@@ -277,6 +278,13 @@ namespace wallet_public
       subtransfers.back().is_income = true;
       return subtransfers.back().amount;
     }
+    static inline bool wallet_transfer_info_get_ado(const wallet_transfer_info& tdb, currency::asset_descriptor_operation& val)
+    {
+      if (currency::get_type_in_variant_container(tdb.tx.extra, val))
+        return true;
+       
+      return false;
+    }
   };
 
   struct wallet_transfer_info_old : public wallet_transfer_info
@@ -291,14 +299,16 @@ namespace wallet_public
       KV_CHAIN_BASE(wallet_transfer_info)
     END_KV_SERIALIZE_MAP()
 
-    static uint64_t wallet_transfer_info_to_amount(const wallet_transfer_info_old& wtio)
+    static bool wallet_transfer_info_to_amount(const wallet_transfer_info_old& wtio, uint64_t &val)
     {
-      return wtio.get_native_amount();
+      val = wtio.get_native_amount();
+      return true;
     }
 
-    static bool wallet_transfer_info_to_is_income(const wallet_transfer_info_old& wtio)
+    static bool wallet_transfer_info_to_is_income(const wallet_transfer_info_old& wtio, bool& val)
     {
-      return wtio.get_native_is_income();
+      val = wtio.get_native_is_income();
+      return true;
     }
 
   };