It seems to be a problem with some characters in it
My original formula in the worksheet (working):
ThisWorkbook.Worksheets("Zazmluvnenia").Cells("3", "AM").Value = "=Výkony!M4 & ", " & TEXT(Výkony!J4;"d.m.yyyy") & ", " & TEXT(Výkony!K4;"hh:mm")"
Putting this into VBA doesn't work because of the quotes. I tried to solve the problem this way: How do I put double quotes in a string in vba?
I changed my code according to the answers on the question above:
"=Výkony!M3 & " & Chr(34) & ", " & Chr(34) & " & TEXT(Výkony!J3;" & Chr(34) & "d.m.yyyy" & Chr(34) & ") & " & Chr(34) & ", " & Chr(34) & " & TEXT(Výkony!K3;" & Chr(34) & "hh:mm" & Chr(34) & ")"
And error '1004' occurred.