VotingOptions Response Reply with Custom Body - vba

Question

I have a macro that runs when I accept specific emails. It replies to the email with a voting option of either "Approved" or "Rejected".
When the recipient of the voting option responds with their choice, the received "choice" email does not have a body. Is there a way to retain the body?
I've tried this so far:
With objMsg
.To = strEmail
.HTMLBody = Item.HTMLBody
.Subject = "Is This Approved?"
.VotingOptions = "Approved;Rejected"
.VotingResponse = "Yes"
.Attachments.Add Item
.Display
.Send
End With
I believe this is only affecting the initial email and not the responses.
I looked at the MailItem Object, but didn't see any options for Voting outside of .VotingOptions and .VotingResponse.
I would be open to ideas outside of Voting buttons (such as a Task or something like that) as long as it can include the body in the response.

Answer 1

As I mentioned in the comments above, I think adding a small hash to the subject is the only way you can track message thread replies. Below is some code for generating a hash based on the date and time to add as a prefix to the subject
Sub TestHash()
Dim lDate As Date: lDate = Now
MsgBox DateTimeHash(lDate)
End Sub
Function DateTimeHash(lDate As Date) As String
DateTimeHash = "#" & fBase36Encode(DateValue(lDate)) & _
fBase36Encode(60 * (60 * Hour(lDate) + Minute(lDate)) + Second(lDate)) & "#"
End Function
Function fBase36Encode(ByRef lngNumToConvert As Long) As String
'Will Convert any Positive Integer to a Base36 String
fBase36Encode = "0"
If lngNumToConvert = 0 Then Exit Function
Dim strAlphabet As String: strAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
fBase36Encode = vbNullString
Do While lngNumToConvert <> 0
fBase36Encode = Mid(strAlphabet, lngNumToConvert Mod 36 + 1, 1) & fBase36Encode
lngNumToConvert = lngNumToConvert \ 36
Loop
End Function
* EDIT *
Using a reversible base 64 hash instead:
Sub TestHash()
Dim lDate As Date: lDate = Now
Debug.Print DateTimeHash(lDate)
Debug.Print DateTimeUnhash(DateTimeHash(lDate))
End Sub
Function DateTimeHash(ByRef lDate As Date) As String
Dim Secs As String: Secs = Encode64(60 * (60 * Hour(lDate) + Minute(lDate)) + Second(lDate))
DateTimeHash = "#" & Encode64(DateValue(lDate)) & String(3 - Len(Secs), "0") & Secs & "#"
End Function
Function DateTimeUnhash(ByRef Hash As String) As Date
Hash = Replace(Hash, "#", "")
Dim Days As Long: Days = Decode64(Left(Hash, Len(Hash) - 3))
Dim Secs As Long: Secs = Decode64(Right(Hash, 3))
DateTimeUnhash = DateAdd("d", Days, "0") + DateAdd("s", Secs, "0")
End Function
Function Encode64(ByRef Value As Long) As String
'Will Convert any Positive Integer to a Base64 String
Const Base64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
Encode64 = IIf(Value > 0, vbNullString, "0")
If Encode64 = "0" Then Exit Function
Do While Value <> 0
Encode64 = Mid(Base64, Value Mod 64 + 1, 1) & Encode64
Value = Value \ 64
Loop
End Function
Function Decode64(ByRef Value As String) As Long
'Will Convert any Base64 String to a Positive Integer
Const Base64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
Decode64 = IIf(Value = "", -1, 0)
Dim i As Long: For i = 1 To Len(Value)
If Decode64 = -1 Then Exit Function ' Error detected with Value string
Decode64 = Decode64 * 64
Decode64 = IIf(InStr(Base64, Mid(Value, i, 1)) > 0, _
Decode64 + InStr(Base64, Mid(Value, i, 1)) - 1, -1)
Next i
End Function