CodexBloom - Programming Q&A Platform

Using VBA to filter and copy data across multiple sheets creates unexpected duplicates

👀 Views: 1 💬 Answers: 1 📅 Created: 2025-06-11
vba excel automation VBA

I've been struggling with this for a few days now and could really use some help. I've been struggling with this for a few days now and could really use some help. I'm working on a VBA macro that filters data from a master sheet and copies it to multiple target sheets based on specific criteria. However, I'm encountering unexpected duplicates in the target sheets after executing the macro. I suspect it might be due to how I'm managing the destination ranges, but I'm not entirely sure. The code I'm using is as follows: ```vba Sub FilterAndCopyData() Dim wsMaster As Worksheet Dim wsTarget As Worksheet Dim LastRow As Long Dim TargetRow As Long Dim criteria As String Set wsMaster = ThisWorkbook.Worksheets("Master") criteria = "SomeValue" TargetRow = 2 'Assuming row 1 has headers ' Clear previous data on target sheets For Each wsTarget In ThisWorkbook.Worksheets If wsTarget.Name <> "Master" Then wsTarget.Range("A2:Z1000").ClearContents End If Next wsTarget ' Filter and copy data LastRow = wsMaster.Cells(wsMaster.Rows.Count, "A").End(xlUp).Row wsMaster.Range("A1:Z" & LastRow).AutoFilter Field:=1, Criteria1:=criteria For Each wsTarget In ThisWorkbook.Worksheets If wsTarget.Name <> "Master" Then wsMaster.Range("A2:Z" & LastRow).SpecialCells(xlCellTypeVisible).Copy wsTarget.Cells(TargetRow, 1) TargetRow = TargetRow + Application.WorksheetFunction.CountIf(wsMaster.Range("A2:A" & LastRow), criteria) End If Next wsTarget wsMaster.AutoFilterMode = False End Sub ``` The issue arises particularly when the filter returns multiple rows matching the criteria. Instead of just copying the filtered data once, the macro seems to be appending the same data multiple times across the target sheets, leading to duplicates. I’ve tried debugging by printing the `TargetRow` variable, and it correctly increments, but the copied data still results in repeated entries. I also verified that no additional filtering or conditional formatting is involved that might be causing the duplication. I'm using Excel 2016, and I would appreciate any insights on how to refine my approach to avoid these duplicates in the target sheets. Any help or suggestions would be greatly appreciated! I'm working on a API that needs to handle this. Any help would be greatly appreciated! Any ideas what could be causing this?