diff --git a/market/v1/msg.proto b/market/v1/msg.proto
index 4443016..14a550a 100644
--- a/market/v1/msg.proto
+++ b/market/v1/msg.proto
@@ -72,6 +72,8 @@ message MarketOrder {
   repeated string comment = 21;
   optional MarketOrder source = 22; // purchase is done via this field
   bool is_ico = 23;
+  optional string starts_at = 24; // RFC3339; absent means immediately available
+  optional string ends_at = 25; // RFC3339; absent means no scheduled end
   // repeated string attachments = 14; // possible files included by
   // seller/buyer
 }
@@ -113,6 +115,15 @@ message MarketOrderList {
   uint32 total_count = 4;
 }
 
+// AdminCancelOrderReq is used by trusted administrative tooling to cancel an
+// order through the wallet service.  The wallet service authenticates the
+// caller with the administrative gRPC token; actor_user_id is retained for
+// audit attribution.
+message AdminCancelOrderReq {
+  uint64 order_id = 1;
+  int64 actor_user_id = 2;
+}
+
 /*
  * participant_type: IS Maker/Taker
  * side: IS Buying/Selling
@@ -132,6 +143,8 @@ message NewMarketReq {
   // TODO: maker market order as optional
   optional uint64 maker_order_id = 9;
   bool is_ico = 10;
+  optional string starts_at = 11; // RFC3339
+  optional string ends_at = 12; // RFC3339
 }
 
 enum MarketOrdersSortBy {
diff --git a/market/v1/srv.proto b/market/v1/srv.proto
index 170144e..ee18073 100644
--- a/market/v1/srv.proto
+++ b/market/v1/srv.proto
@@ -20,6 +20,8 @@ service MarketplaceSrv {
   rpc CalcICOBuy(wallet.v1.BuyAssetReq) returns (wallet.v1.CalcBuyAssetRes);
 
   rpc CancelOrder(auth.v1.IdReqWithIAMAndTFA) returns (base.v1.StatusRes); // cancel an order
+  rpc AdminCancelOrder(AdminCancelOrderReq) returns (base.v1.StatusRes); // cancel an order from trusted admin tooling
+  rpc DeleteOrder(auth.v1.IdReqWithIAMAndTFA) returns (base.v1.StatusRes); // delete a closed order
 
   rpc NewMarketOrder(NewMarketReq) returns (MarketOrder); // insert new buy order to market
   rpc GenerateMarketContract(MarketContractReq) returns (ContractMarketRes);