Subscript out of range error - combining worksheets - excel

Question

I have multiple workbooks with worksheet named 'SUMMARY-F'. I need to combine these worksheets into one workbook and I am using the below code:
Sub CopySheets1()
Dim wkb As Workbook
Dim sWksName As String
sWksName = "SUMMARY-F"
For Each wkb In Workbooks
If wkb.Name <> ThisWorkbook.Name Then
wkb.Worksheets(sWksName).Copy _
Before:=ThisWorkbook.Sheets(1)
End If
Next
Set wkb = Nothing
End Sub
The code worked perfectly about 4 times however now when I run it, I get a subscript out of range error 9. Any tips on how to fix this?
Thanks,
Lucinda

Answer 1

If you have a workbook that is open that doesn't contain a sheet called SUMMARY-F you'll get an out-of-range error because Excel can't find a sheet with the specified name. This error will also apply to hidden workbooks such as a PERSONAL.xlsm if you've used it to record macros.
You should include a check in your code to handle the case when an open workbook doesn't have a sheet called SUMMARY-F.
See this question that gives options on how to identify if a sheet exists, such as defining a function that could be called from your code first:
How to check whether certain sheets exist or not in Excel-VBA?
You'll just need to modify it to check a sheet in another workbook, something like:
Public Function CheckSheet(ByVal sWB As String, ByVal sSheetName As String) As Boolean
Dim oSheet As Excel.Worksheet
Dim bReturn As Boolean
For Each oSheet In Workbooks(sWB).Sheets
If oSheet.Name = sSheetName Then
bReturn = True
Exit For
End If
Next oSheet
CheckSheet = bReturn
End Function
Then you can add a check in your code:
Sub CopySheets1()
Dim wkb As Workbook
Dim sWksName As String
sWksName = "SUMMARY-F"
For Each wkb In Workbooks
If wkb.Name <> ThisWorkbook.Name Then
If CheckSheet(wkb.Name,sWksName)
wkb.Worksheets(sWksName).Copy Before:=ThisWorkbook.Sheets(1)
End If
End If
Next
Set wkb = Nothing
End Sub