Outlook New Email event listener

I'm building a reminder tool in Excel using Outlook to send data to a user. The user's response data needs to return by the same avenue, through Outlook. To pass the response data from Outlook back to Excel I need to set up some sort of event listener to accomplish the following goals:
1. Target and bind to the most current email. (This will only ever contain response data from users)
2. Move the binded email to a separate folder (outside of the Inbox).
3. Pass the binded email item to a separate macro for further processing. I've built a macro that pulls apart the subject line and the body text so that it can be passed into Excel more easily.
4. Continue listening for more emails in the Inbox.

Tl;dr: I need an event listener that will bind to the most current email item - at some point during the macro's execution it needs to move that binded mail item to a separate folder outside of the main Inbox.
In my own research I've discovered that everything I want to do is totally possible to achieve within the scope of VBA. I'm getting lost putting the pieces together.
Any help or guidance is deeply appreciated.

Does this work? This code comes from https://docs.microsoft.com/en-us/office/vba/api/outlook.application.newmail

Code:

---

Public WithEvents myOlApp As Outlook.Application
Sub Initialize_handler()
Set myOlApp = Outlook.Application
End Sub

Private Sub myOlApp_NewMail()
Dim myExplorers As Outlook.Explorers
Dim myFolder As Outlook.Folder
Dim x As Integer
Set myExplorers = myOlApp.Explorers
Set myFolder = myOlApp.GetNamespace("MAPI").GetDefaultFolder(olFolderInbox)
If myExplorers.Count <> 0 Then
For x = 1 To myExplorers.Count
On Error GoTo skipif
If myExplorers.Item(x).CurrentFolder.Name = "Inbox" Then
myExplorers.Item(x).Display
myExplorers.Item(x).Activate
Exit Sub
End If
skipif:
Next x
End If
On Error GoTo 0
myFolder.Display
End Sub

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Without modifying this code at all and just injecting it directly into my Outlook's console, ThisOutlookSession, I get runtime error 91, Object Required.

Arg. LOL.

Update: Found this code block on another forum site. I'm not sure about the rules here for posting links to outside forums so I'll just drop the code block.

Code:

---

Option Explicit

Private WithEvents inboxItems As Outlook.Items



Private Sub Application_Startup()

  Dim outlookApp As Outlook.Application

  Dim objectNS As Outlook.NameSpace



  Set outlookApp = Outlook.Application

  Set objectNS = outlookApp.GetNamespace("MAPI")

  Set inboxItems = objectNS.GetDefaultFolder(olFolderInbox).Items

End Sub



Private Sub inboxItems_ItemAdd(ByVal Item As Object)

On Error GoTo ErrorHandler



Dim Msg As Outlook.MailItem

Dim MessageInfo

Dim Result

IfTypeName(Item) = "MailItem"Then

    MessageInfo = ""& _

"Sender : "& Item.SenderEmailAddress& vbCrLf & _

"Sent : "& Item.SentOn& vbCrLf & _

"Received : "& Item.ReceivedTime& vbCrLf & _

"Subject : "& Item.Subject& vbCrLf & _

"Size : "& Item.Size& vbCrLf & _

"Message Body : "& vbCrLf & Item.Body

    Result = MsgBox(MessageInfo, vbOKOnly, "New Message Received")

EndIf



ExitNewItem:

    Exit Sub



ErrorHandler:

    MsgBox Err.Number&" - "& Err.Description

    Resume ExitNewItem

End Sub


---

RESOLUTION:

Step 1: Set up event listener to grab onto the newest mail item in your top level Inbox folder.

Code:

---

Option ExplicitPrivate WithEvents inboxItems As Outlook.Items
Private Sub Application_Startup()
  Dim outlookApp As Outlook.Application
  Dim objectNS As Outlook.NameSpace
 
  Set outlookApp = Outlook.Application
  Set objectNS = outlookApp.GetNamespace("MAPI")
  Set inboxItems = objectNS.GetDefaultFolder(olFolderInbox).Items
End Sub

---

Step 2: Actually do something to the bound item:

Code:

---

Private Sub inboxItems_ItemAdd(ByVal Item As Object)On Error GoTo ErrorHandler
Dim Msg As Outlook.MailItem
Dim MessageInfo
Dim Result
If TypeName(Item) = "MailItem" Then
'DO SOMETHING TO THE ITEM (In my case I'm calling a macro in a module to do more to this item.)
End If
ExitNewItem:
    Exit Sub
ErrorHandler:
    MsgBox Err.Number & " - " & Err.Description
    Resume ExitNewItem
End Sub

---

Step 3: Set up a Module to do what you want to do to the mail item. In my case, I'm breaking apart the subject line for specific pieces of text and reading the content of the body for an integer value.

Code:

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Public Sub SendToNB(Item As Outlook.MailItem)'''''''SEND EMAIL TEXT TO EXCEL'''''''''''''
'''Code by Jakson Kitsune, various others'''
'''''''''''''Project Start: 8/14/2021'''''''
''''''''''''''Last Update: 02/14/2022'''''''
''''''''''''''Version: 3.1.0.0''''''''''''''
 
 Dim myNameSpace As Outlook.NameSpace
 Dim myInbox As Outlook.Folder
 Dim myDestFolder As Outlook.Folder


 Set myNameSpace = Application.GetNamespace("MAPI")
 Set myInbox = myNameSpace.GetDefaultFolder(olFolderInbox)
 Set myDestFolder = myInbox.Folders("Test")






MsgBox "Send to NB taking over"

With Item
   
    MsgBox "With item"
   
        'Particularly with the subject...
        Subj = Item.Subject
        MsgBox "Subj"


'...more execution happens but it's really esoteric and it was all built for my purposes. LOL.

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