Put it outside the outermost If Then End If.
There is no error handler code so the GoTo Error is useless. The two Exit Subs are unnecessary because there is no code after the If Then that needs to be bypassed. If you want error handler:
Code:
Private Sub Send_AORB_OOB_Click()
Dim strSubject, strBody, strAddresses As String
On Error GoTo ErrProc
DoCmd.RunCommand acCmdSaveRecord
If IsNull(CR_Numbers) Then
MsgBox "There are no OOB CRs to send"
Else
With Me
If Not IsNull(.cbxNumber) And Not IsNull(.Priority) And Not IsNull(.Hours) Then
strBody = strBody & "Date Issue Identified: " & Chr(9) & Chr(9) & Chr(9) & !Dates & vbCrLf & vbCrLf
DoCmd.SendObject acSendNoObject, , acFormatTXT, strAddresses, , , strSubject, strBody, True
End If
End With
End If
ExitProc:
DoCmd.Close acForm, "Email_AORB"
Exit Sub
ErrProc:
Resume ExitProc
End Sub