EmptyCellReferences Property
When set to True (default), Microsoft Excel identifies, with an AutoCorrect Options button, selected cells containing formulas that refer to empty cells. False disables empty cell reference checking. Read/write Boolean.
expression.EmptyCellReferences
expression Required. An expression that returns one of the objects in the Applies To list.
Example
In the following example, the AutoCorrect Options button appears for cell A1 which contains a formula that references empty cells.
Sub CheckEmptyCells()
Application.ErrorCheckingOptions.EmptyCellReferences = True
Range("A1").Formula = "=A2+A3"
End Sub