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Excel VBA to Dynamically Update Pivot Table Data Source - Missing Data guide

๐Ÿ‘€ Views: 483 ๐Ÿ’ฌ Answers: 1 ๐Ÿ“… Created: 2025-06-16
excel vba pivot-table

I'm having a hard time understanding I'm trying to automate the refresh of a Pivot Table in Excel using VBA, but I'm working with an scenario where the data source isn't updating correctly... My data range increases dynamically, and I'm attempting to set the source for my Pivot Table based on the last row of data in a specific column. However, when I run the code, it often results in a 'Reference is not valid' behavior. Hereโ€™s the code Iโ€™m using: ```vba Sub UpdatePivotTableSource() Dim ws As Worksheet Dim pt As PivotTable Dim lastRow As Long Dim dataRange As Range Set ws = ThisWorkbook.Sheets("Data") lastRow = ws.Cells(ws.Rows.Count, "A").End(xlUp).Row Set dataRange = ws.Range("A1:C" & lastRow) ' Adjust range as needed Set pt = ThisWorkbook.Sheets("PivotSheet").PivotTables("PivotTable1") pt.ChangePivotCache ThisWorkbook.PivotCaches.Create( SourceType:=xlDatabase, SourceData:=dataRange) pt.RefreshTable End Sub ``` I've verified that the data in "A1:C" & lastRow is correct, and manually updating the Pivot Table works fine. However, when I run this macro, sometimes it throws the 'Reference is not valid' behavior, especially if the last row of data is empty. I've tried adding behavior handling and checking for empty rows, but it hasn't resolved the scenario. Could it be that the macro is executing before Excel recognizes the new data range? Whatโ€™s the best approach to ensure it correctly identifies the data range each time? The project is a CLI tool built with Vba. Has anyone else encountered this? I'm working on a REST API that needs to handle this. Am I missing something obvious?