Application.Caller property (Excel)

Returns information about how Visual Basic was called (for more information, see the Remarks section).


expression.Caller (Index)

expression A variable that represents an Application object.


Name Required/Optional Data type Description
Index Optional Variant An index to the array. This argument is used only when the property returns an array.


This property returns information about how Visual Basic was called, as shown in the following table.

Caller Return value
A custom function entered in a single cell A Range object specifying that cell.
A custom function that is part of an array formula in a range of cells A Range object specifying that range of cells.
An Auto_Open, Auto_Close, Auto_Activate, or Auto_Deactivate macro The name of the document as text.
A macro set by either the OnDoubleClick or OnEntry property The name of the chart object identifier or cell reference (if applicable) to which the macro applies.
The Macro dialog box (Tools menu), or any caller not described earlier The #REF! error value.


This example displays information about how Visual Basic was called.

Select Case TypeName(Application.Caller) 
 Case "Range" 
 v = Application.Caller.Address 
 Case "String" 
 v = Application.Caller 
 Case "Error" 
 v = "Error" 
 Case Else 
 v = "unknown" 
End Select 
MsgBox "caller = " & v

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