One of my manuscripts was prepared for submission to a CORE-A conference in Computer Science. There are only 2 days due for submission of the paper. As usual, I usually get my paper reviewed by one of my colleagues. However, I was surprised by his remark that the manuscript looks like a complete paper and should be submitted to a journal instead.
This is creating a mood switch in me as I am highly confused whether should I submit to the conference or a journal suggested by him. I already have one paper submitted to the conference along with my students which should not influence this submission (as per answer here). Moreover, I am not interested in working on the extension of the presently prepared work (so this question does not come into the situation). So, I just want to get my work published somewhere in a good venue.
Is it common in research dissemination? How should I decide on the possible venue given such a short deadline of 2 days?