vba - Run-time error: '438': Object doesn't support this property or method -

my client getting error running fine on machine. getting error on line..

activesheet.combobox1.value = "select department category group"

can please tell me porblem??

actually, drop down type. so, cannot set value. should add item follow:

sheets("sheetname").shapes("comboname").controlformat.additem ("select department category group")