How to Handle Run-Time Error 3022

[bullfrog83]

On the OnClick event of a command button I have code that copies a parent record and all of its child records in the same table using recordsets:

Private Sub cmdCopy_Click()
On Error GoTo Error_Handler

    Dim lngMatricIdFrom As Long
    Dim lngMatricIdTo As Long
    Dim lngDiscId As Long
    Dim lngDiscClassId As Long
    Dim lngNewDiscId As Long
    Dim lngNewDiscClassId As Long
    Dim strStatus As String
    Dim rstDiscTo As DAO.Recordset
    Dim rstDiscFrom As DAO.Recordset
    Dim rstDiscClTo As DAO.Recordset
    Dim rstDiscClFrom As DAO.Recordset
    Dim rstDiscCrTo As DAO.Recordset
    Dim rstDiscCrFrom As DAO.Recordset
    Dim rstDiscCrExTo As DAO.Recordset
    Dim rstDiscCrExFrom As DAO.Recordset

    DoCmd.Hourglass True
    
    strStatus = SysCmd(acSysCmdSetStatus, "Copying Disciplines...")
    
    lngMatricIdFrom = Me.cboMatricIdFrom.Column(0)
    lngMatricIdTo = Me.cboMatricIdTo.Column(0)

    Set rstDiscTo = CurrentDb.OpenRecordset("Disc", dbOpenDynaset)
    Set rstDiscFrom = CurrentDb.OpenRecordset("SELECT * FROM Disc WHERE MatricId = " & lngMatricIdFrom)
    
    If rstDiscFrom.BOF And rstDiscFrom.EOF Then
        GoTo Exit_Procedure
    Else: rstDiscFrom.MoveFirst
    End If
    
    'Copy discipline with selected matricid
    Do While Not rstDiscFrom.EOF
        With rstDiscTo
            .AddNew
            !MatricId = lngMatricIdTo
            !CodeDiscTypeId = rstDiscFrom!CodeDiscTypeId
            !CodeDiscId = rstDiscFrom!CodeDiscId
            !CreditMin = rstDiscFrom!CreditMin
            !CourseMin = rstDiscFrom!CourseMin
            !ClassMin = rstDiscFrom!ClassMin
            !SortOrder = rstDiscFrom!SortOrder
            .Update 'CODE STOPS
            .Bookmark = rstDiscTo.LastModified
            lngNewDiscId = rstDiscTo!DiscId
        End With
        
        lngDiscId = rstDiscFrom!DiscId
        
        Set rstDiscClTo = CurrentDb.OpenRecordset("DiscClass", dbOpenDynaset)
        Set rstDiscClFrom = CurrentDb.OpenRecordset("SELECT * FROM DiscClass WHERE DiscId = " & lngDiscId, dbOpenSnapshot)
        
        If rstDiscClFrom.BOF And rstDiscClFrom.EOF Then
            Exit Do
        Else: rstDiscClFrom.MoveFirst
        End If
        
        'Loop through and copy discipline's classifications with new DiscId
        Do While Not rstDiscClFrom.EOF
            With rstDiscClTo
                .AddNew
                !DiscId = lngNewDiscId
                !CodeClassId = rstDiscClFrom!CodeClassId
                !CreditMin = rstDiscClFrom!CreditMin
                !CourseMin = rstDiscClFrom!CourseMin
                !SortOrder = rstDiscClFrom!SortOrder
                !ClassNote = rstDiscClFrom!ClassNote
                .Update
                .Bookmark = rstDiscClTo.LastModified
                lngNewDiscClassId = rstDiscClTo!DiscClassId
            End With
            
            lngDiscClassId = rstDiscClFrom!DiscClassId
                        
            Set rstDiscCrTo = CurrentDb.OpenRecordset("DiscCourse", dbOpenDynaset)
            Set rstDiscCrFrom = CurrentDb.OpenRecordset("SELECT Cr.* FROM DiscCourse Cr INNER JOIN DiscClass Cl ON " _
                & "Cr.DiscClassId = Cl.DiscClassId WHERE Cl.DiscClassId = " & lngDiscClassId, dbOpenSnapshot)
                
            If rstDiscCrFrom.BOF And rstDiscCrFrom.EOF Then
                Exit Do
            Else: rstDiscCrFrom.MoveFirst
            End If
            
            'Loop through and copy discipline's classification's courses with new DiscClassId
            Do While Not rstDiscCrFrom.EOF
                With rstDiscCrTo
                    .AddNew
                    !DiscClassId = lngNewDiscClassId
                    !Course = rstDiscCrFrom!Course
                    !AnyPassingGrade = rstDiscCrFrom!AnyPassingGrade
                    !MinGradeId = rstDiscCrFrom!MinGradeId
                    !IncludeMajorGPA = rstDiscCrFrom!IncludeMajorGPA
                    !SortOrder = rstDiscCrFrom!SortOrder
                    .Update
                End With
                rstDiscCrFrom.MoveNext
            Loop
        
            rstDiscClFrom.MoveNext
        Loop
MoveNextDisc:
        rstDiscFrom.MoveNext
    Loop
    
    Forms!f_Main!sfrmDisc.Requery

Exit_Procedure:
    On Error Resume Next
    rstDiscTo.Close
    Set rstDiscTo = Nothing
    rstDiscFrom.Close
    Set rstDiscFrom = Nothing
    rstDiscClTo.Close
    Set rstDiscClTo = Nothing
    rstDiscClFrom.Close
    Set rstDiscClFrom = Nothing
    rstDiscCrTo.Close
    Set rstDiscCrTo = Nothing
    rstDiscCrFrom.Close
    Set rstDiscCrFrom = Nothing
    rstDiscCrExTo.Close
    Set rstDiscCrExTo = Nothing
    rstDiscCrExFrom.Close
    Set rstDiscCrExFrom = Nothing
    strStatus = SysCmd(acSysCmdClearStatus)
    DoCmd.Hourglass False
    DoCmd.SetWarnings True
    Exit Sub
    
Error_Handler:
    If Err.Number = 3022 Then
        GoTo MoveNextDisc
    Else
        MsgBox "Error " & Err.Number & ": " & Err.Description, vbCritical
        Resume Exit_Procedure
        Resume
    End If
End Sub

This code works fine except when there's a duplicate record. I try to handle this in Error_Handler. If the user is trying to copy a record that already exists with the same MatricId, CodeDiscTypeId, and CodeDiscId, then I basically want to skip over that record and move on to the next record in the rstDiscFrom recordset. This appears to work for the first record in the recordset. However, come the second duplicate record, the code stops at the .Update line above where it tries to add a new record to rstDiscTo (and where I put a CODE STOPS comment for you) and it gives me a Run-Time Error 3022. I want it to jump to my Error_Handler so it knows to just skip that record and move on to the next. How do I do this?