VBA for Outlook - Change Subject Line using Right - vba

Question

I am trying to change incoming emails subject line to only the last 11 characters of the subject line. When I use Item.Subject = Right(Item.Subject,11) it does not work.
Can someone assist?
Full code.
Sub ChangeSubjectForward(Item As Outlook.MailItem)
Item.Subject = Right(Item.Subject, 11)
Item.Save
End Sub

Answer 1

You could create a macro rule then run the below code:
Sub save_to_dir_test1(mymail As MailItem)
Dim strID As String
Dim objMail As Outlook.MailItem
strID = mymail.EntryID
Set objMail = Application.Session.GetItemFromID(strID)
objMail.Subject = Right(m.Subject, 11)
objMail.Save
Set objMail = Nothing
End Sub
For more information, please refer to this link:
Run a Script Rule: Change Subject then Forward Message
Getting the incoming email in outlook via VBA

Answer 2

I found another SO thread that says you can't modify the subject of a message without opening it first. We can use ActiveInspector to get a handle on the Item after we display it. Then we can change it, save it, and close it. I added a check to see if the subject is actually longer than 11 characters before we attempt to truncate it.
Try this:
Public Sub ChangeSubjectForward(ByRef Item As Outlook.MailItem)
Debug.Print Now ' This shows you when the code runs
If Len(Item.Subject) > 11 Then
Debug.Print "Subject is too long. Trimming..." ' This shows that we tried to truncate.
Item.Display 'Force the pop-up
Dim thisInspector As Inspector
Set thisInspector = Application.ActiveInspector
Set Item = thisInspector.CurrentItem ' Get the handle from the Inspector
Item.Subject = Right$(Item.Subject, 11)
Item.Save
Item.Close
End If
End Sub