Update pivot table cell then refresh

Question

 I want to update my pivot table that connects to my SQL2008R2 AS. The requirement is to update the ship date with cuurent date then refresh
all Tabs with WorkBook. Here is my code that doesn't allow me to update the cell. The xcel version is 2003.
$year=(Get-Date).Year
$month="{0:dd-MMM}" -f (Get-Date)
$sdate="{0:yyyy-MM-dd}" -f (Get-Date)
# Create base object
$xl = new-object -comobject Excel.Application
# make Excel visible
#$xl.visible = $true
$xl.DisplayAlerts = $False
# open a workbook
$wb = $xl.workbooks.open("C:\archive\ShipmentDetailEur.v4.xls")
# Get sheet1
$ws = $wb.worksheets | where {$_.name -eq "CustShipmentDetail"}
$sdate=[char]39 + "{0:yyyy-MM-dd}" -f (Get-Date) # '2012-08-30
$ws.Cells.Item(11,2) = $sdate
$wb.Save()
#logging stuff
Write-Host $wb.Name
write-host $wb.Path
$xl.Quit()
  Error:
Exception setting "Item": "You cannot select an item in this field
 Thanks.
    

Answer 1

Hi Hart60,
I could not reproduce the error you posted, however, To update the item in the Excel cell, please refer to the script:
$ExcelPath = 'd:\merge3.xlsx'
$Excel = New-Object -ComObject Excel.Application
$Excel.Visible = $true
$ExcelWordBook = $Excel.Workbooks.Open($ExcelPath)
$ExcelWorkSheet = $Excel.WorkSheets.item("CustShipmentDetail")
$ExcelWorkSheet.Cells.Item(2,1).Value2 = "teststring"
$ExcelWorkSheet.SaveAs("d:\merge3.xlsx")
## quit the workbook
$Excel.Quit()
For more detailed information, please go through this article:
Modifying Excel Documents with PowerShell
If there is anything else regarding this matter, please feel free to let me know.
Best Regards,
Anna Wang