Hi Florian,
Strange behavior. I made some tests here and works just fine.
This is the code I used (it's basically the copy of your code above):
Sub insertMembersColLines() Dim client As Object Set client = Application.COMAddIns("FPMXLClient.Connect").Object client.AddMemberToColumAxis ThisWorkbook.Sheets("Sheet1"), "000", "2007.TOTAL", 1 client.RefreshActiveSheet End Sub
Is the error being tigger at line of AddMemberToColumAxis or at refreshing report?
You can check your report options, it's the last option.
Sorry not be able to help...
Best Regards,
Lucas