Applying for AB and 100T at the same time?

Is it possible to apply for a 100T(near coastal) and AB(limited) at the same time? I have 736 sea days(all on a vessel over 200 tons) and, have never processed any other coast guard documentation. I just sent in my application for both and was told it couldn’t be done by a friend, I thought I did my research but maybe I’m wrong.

Any help is appreciated
Thanks Daniel