Tourist vs business short stay Schengen visa

I plan to visit Schengen area for business purpose in February. In the mean time, I have a valid multi-entry short stay visa and the remaining days are good for the upcoming visit. However, when I applied the visa earlier this year, it was for tourist only, and that is how I did for my first entry with the visa. My question is if I can use the visa for the upcoming 2nd entry for the business purpose? Do I need to reapply the visa for business category? TC: 400k