How do I apply a SumIf Formula in a VBA Sub? Getting Error 1004

Question

I am trying to create a Sub that places a SUMIF formula in a cell. I have reduced the problem to a simple setup:

Private Sub CommandButton1_Clic         


        

Answer 1

.Formula accepts formulas in English.
Parameter separator in English is ,.

If you want to use formulas in the language of your Excel installation, use .FormulaLocal.

However to ensure your code will run on any Excel, fix your formula to be in accordance with the en-us locale.