Re-submission of rejected manuscript without informing co-authors A paper we submitted was rejected without a review because of journal scope issues. After the rejection, I decided to send the same manuscript content (changed formats only according to the journal's guidelines) to another journal where I believe it fits. However, I missed informing other co-authors about the rejection as I presumed it is unnecessary because I am submitting the same version of the MS and we are not particular of the journal and its metrics as long as it is fitting. I experienced the same thing before where the primary and corresponding author did not inform us of the rejection rather send it to another journal without our consent (for me that time it was fine). However, this time one of the co-authors scolded me because of the actions I made and I realised it was wrong. Any advice on how will I handle and respond to this?
You should apologize and admit you were wrong. Don't try to defend your actions. It is a head-slapping error. Send the apology to everyone. Offer to immediately withdraw the submission if anyone desires it. Ask for advice going forward. That should cover it. 

All authors need to be on the same page for actions on their work.