diff --git a/src/common/Common.h b/src/common/Common.h
index 40225fdc..2e49c81e 100644
--- a/src/common/Common.h
+++ b/src/common/Common.h
@@ -49,13 +49,13 @@ namespace Sapphire::Common
     uint8_t plot;
   };
 
-  enum InventoryOperation : uint8_t
+  enum InventoryOperation : uint16_t
   {
-    Discard = 0x07,
-    Move = 0x08,
-    Swap = 0x09,
-    Merge = 0x0C,
-    Split = 0x0A
+    Discard = 0x2EB,
+    Move = 0x2EC,
+    Swap = 0x2ED,
+    Merge = 0x2F0,
+    Split = 0x2EE
   };
 
   enum ClientLanguage : uint8_t
diff --git a/src/common/Network/PacketDef/Ipcs.h b/src/common/Network/PacketDef/Ipcs.h
index ba845a20..c5a9db0f 100644
--- a/src/common/Network/PacketDef/Ipcs.h
+++ b/src/common/Network/PacketDef/Ipcs.h
@@ -158,7 +158,7 @@ namespace Sapphire::Network::Packets
     PlayerStateFlags = 0x032B, // updated 5.2
     PlayerClassInfo = 0x039A, // updated 5.2
 
-    ModelEquip = 0x02E6, // updated 5.18
+    ModelEquip = 0x03C9, // updated 5.2
     Examine = 0x038B, // updated 5.2
     CharaNameReq = 0x0116, // updated 5.18
 
@@ -194,10 +194,10 @@ namespace Sapphire::Network::Packets
     EventLinkshell = 0x1169,
 
     QuestActiveList = 0x017B, // updated 5.2
-    QuestUpdate = 0x0066, // updated 5.18
+    QuestUpdate = 0x02CE, // updated 5.2
     QuestCompleteList = 0x0255, // updated 5.2
 
-    QuestFinish = 0x013A, // updated 5.18
+    QuestFinish = 0x006F, // updated 5.2
     MSQTrackerComplete = 0x01D6, // updated 5.0
     MSQTrackerProgress = 0xF1CD, // updated 4.5 ? this actually looks like the two opcodes have been combined, see #474
 
@@ -353,9 +353,9 @@ namespace Sapphire::Network::Packets
 
     TalkEventHandler = 0x0340, // updated 5.2
     EmoteEventHandler = 0x0183, // updated 5.18
-    WithinRangeEventHandler = 0x0167, // updated 5.18
-    OutOfRangeEventHandler = 0x02B5, // updated 5.18
-    EnterTeriEventHandler = 0x0267, // updated 5.18
+    WithinRangeEventHandler = 0x010E, // updated 5.2
+    OutOfRangeEventHandler = 0x00AE, // updated 5.2
+    EnterTeriEventHandler = 0x00C1, // updated 5.2
     ShopEventHandler = 0x0156, // updated 5.0
 
     ReturnEventHandler = 0x027F, // updated 5.2
diff --git a/src/common/Network/PacketDef/Zone/ClientZoneDef.h b/src/common/Network/PacketDef/Zone/ClientZoneDef.h
index 9c8d0fc0..d486ee42 100644
--- a/src/common/Network/PacketDef/Zone/ClientZoneDef.h
+++ b/src/common/Network/PacketDef/Zone/ClientZoneDef.h
@@ -217,7 +217,7 @@ struct FFXIVIpcInventoryModifyHandler :
 {
   /* 0000 */ uint32_t seq;
   /* 0004 */ Common::InventoryOperation action;
-  /* 0005 */ uint8_t pad_0005[7];
+  /* 0006 */ uint8_t pad_0006[6];
   /* 000C */ uint16_t fromContainer;
   /* 000E */ uint8_t pad_000E[2];
   /* 0010 */ uint8_t fromSlot;
diff --git a/src/common/Network/PacketDef/Zone/ServerZoneDef.h b/src/common/Network/PacketDef/Zone/ServerZoneDef.h
index d0c53886..d8b90a7c 100644
--- a/src/common/Network/PacketDef/Zone/ServerZoneDef.h
+++ b/src/common/Network/PacketDef/Zone/ServerZoneDef.h
@@ -1295,8 +1295,7 @@ namespace Sapphire::Network::Packets::Server
   struct FFXIVIpcInventoryTransaction : FFXIVIpcBasePacket< InventoryTransaction >
   {
     uint32_t sequence;
-    uint8_t type;
-    uint8_t padding;
+    uint16_t type;
     uint16_t padding1;
     uint32_t ownerId;
     uint32_t storageId;
diff --git a/src/world/Actor/Player.h b/src/world/Actor/Player.h
index 26984e17..7dd294db 100644
--- a/src/world/Actor/Player.h
+++ b/src/world/Actor/Player.h
@@ -918,7 +918,7 @@ namespace Sapphire::Entity
 
     InvSlotPair getFreeBagSlot();
 
-    Sapphire::ItemPtr addItem( uint32_t catalogId, uint32_t quantity = 1, bool isHq = false, bool slient = false );
+    Sapphire::ItemPtr addItem( uint32_t catalogId, uint32_t quantity = 1, bool isHq = false, bool slient = false, bool canMerge = true );
 
     void moveItem( uint16_t fromInventoryId, uint8_t fromSlotId, uint16_t toInventoryId, uint8_t toSlot );
 
diff --git a/src/world/Actor/PlayerInventory.cpp b/src/world/Actor/PlayerInventory.cpp
index fe89ca81..963830ae 100644
--- a/src/world/Actor/PlayerInventory.cpp
+++ b/src/world/Actor/PlayerInventory.cpp
@@ -534,7 +534,7 @@ bool Sapphire::Entity::Player::isObtainable( uint32_t catalogId, uint8_t quantit
 }
 
 
-Sapphire::ItemPtr Sapphire::Entity::Player::addItem( uint32_t catalogId, uint32_t quantity, bool isHq, bool silent )
+Sapphire::ItemPtr Sapphire::Entity::Player::addItem( uint32_t catalogId, uint32_t quantity, bool isHq, bool silent, bool canMerge )
 {
   auto pDb = m_pFw->get< Db::DbWorkerPool< Db::ZoneDbConnection > >();
   auto pExdData = m_pFw->get< Data::ExdDataGenerated >();
@@ -570,10 +570,13 @@ Sapphire::ItemPtr Sapphire::Entity::Player::addItem( uint32_t catalogId, uint32_
 
     for( uint8_t slot = 0; slot < storage->getMaxSize(); slot++ )
     {
+      if( !canMerge && foundFreeSlot )
+        break;
+
       auto item = storage->getItem( slot );
 
       // add any items that are stackable
-      if( item && !itemInfo->isEquippable && item->getId() == catalogId )
+      if( canMerge && item && !itemInfo->isEquippable && item->getId() == catalogId )
       {
         uint32_t count = item->getStackSize();
         uint32_t maxStack = item->getMaxStackSize();
@@ -742,7 +745,7 @@ void Sapphire::Entity::Player::splitItem( uint16_t fromInventoryId, uint8_t from
     // todo: correct invalid move? again, not sure what retail does here
     return;
 
-  auto newItem = addItem( fromItem->getId(), itemCount, fromItem->isHq(), true );
+  auto newItem = addItem( fromItem->getId(), itemCount, fromItem->isHq(), true, false );
   if( !newItem )
     return;
 
@@ -840,7 +843,7 @@ void Sapphire::Entity::Player::discardItem( uint16_t fromInventoryId, uint8_t fr
   invTransPacket->data().catalogId = fromItem->getId();
   invTransPacket->data().stackSize = fromItem->getStackSize();
   invTransPacket->data().slotId = fromSlotId;
-  invTransPacket->data().type = 7;
+  invTransPacket->data().type = Common::InventoryOperation::Discard;
   queuePacket( invTransPacket );
 
   auto invTransFinPacket = makeZonePacket< FFXIVIpcInventoryTransactionFinish >( getId() );