How much can minor grammar mistakes affect my application?

I submitted my application to the CUNY Macaulay Honors pgoram and while my essay and other information was without error I noticed I made two errors in the activities section. These issues do not impact the truthfulness of the activities however. Are these issues a tipping factor on my app when everything else is grammatically correct? Are these errors large enough to warrant contacting the honors program or college?

I don’t think you should email the program/college about this. Unless the sentence is not readable, or the grammar mistakes are consistent, you should be fine.

Don’t sweat it, and don’t bother contacting them about it. Bringing it to their attention would IMHO more likely be harmful than helpful.