I have following formula in a cell which shows output depends on other cells
conditions, it also prompt users to write data in same cell thus this formula
will be erased, I am looking for a macro which can place this formula back
into cell after user finished every single input.

=IF(AND(F2<"AA",UPPER(F12)<"BB"),VLOOKUP(F9&"."& G10,Records!C2:R65536,6),IF(OR(AND(F2<"AA",UPPER( F12)="BB"),AND(F2="AA",UPPER(F12)="BB")),"N/A","write
something"))

Tks