Hi! I had a hunt for something the same as this but SharePoint....no luck! i am building an app on the list but i need help with a formula. I have a date column and a month column. i pull the month from the date using a formula.
I need to have a column that gives me the number for days in the month.
=IF(ISBLANK([Install Date]),"",((MONTH([Install date]),"D")
This is probably very wrong.....does anyone know the formula to calculate this?