Store Transform Data

i'm trying to create a farm with a selectable size

Unity

if (Cords == ""){	Cords += Postions.x + " , " + Postions.y;}else
{        Cords += ";" + Postions.x + " , " + Postions.y;}

passing it through this code

handlers.BuildPumpkinCrop = function(args,IslandID,Stack) {
    
    
    
    
   var inventory = server.GetUserInventory({ PlayFabId: currentPlayerId});
   var FirstitemInstance = null;


  
    for (var i = 0; i < inventory.Inventory.length; i++) {
      
        if (inventory.Inventory[i].ItemId == 100 ){
            FirstitemInstance = inventory.Inventory[i].ItemInstanceId;
        }
    }
    
     server.ConsumeItem({ PlayFabId: currentPlayerId, ItemInstanceId: FirstitemInstance , ConsumeCount: args.Stack });
     
     
     
    var result = server.GrantItemsToUser({
        // In your game, this should just be a constant
        CatalogVersion : "CustomData",
        PlayFabId : args.IslandID,
        ItemIds : [ 1005 ]
    });
    
    var inventory1 = server.GetUserInventory({ PlayFabId: args.IslandID});
    var FirstitemInstance1 = null;
    FirstitemInstance1 = inventory1.Inventory[0].ItemInstanceId;
  
  
   server.UpdateUserInventoryItemCustomData({ItemInstanceId : FirstitemInstance1  , PlayFabId: args.IslandID, Data: {
    "Cords": args.Cords}
     });
     
}

this code works with 100 kilobytes

but if it's more then that it doesn't anymore

anywork around ?

https://www.dropbox.com/s/0ss4pe2jgfcklen/Capture.PNG?dl=0