Including part of EC in 'Additional Info' on common app?

I do not have enough space to talk about a EC on the common app? Do you think it is a good/bad idea to include the extra info on my ‘additional info’ section about this EC? Or should I just leave it and do my best with the 150 characters?

Without knowing the specifics, I would say 150 characters should be sufficient. Knowing how to effectively edit is a valuable tool. The space is not asking you to tell your life story. If you truly cannot get it down to 150 without giving eliminating a key element, then yes, you can use the add’l info section.

Agree that 150 characters should be enough if you are succinct.

Alright, thanks @skieurope @happy1