Now I can't edit contact and add new contact to outlook.com account on my Android phone.

Question for the Forum Moderator:  How did this response (i.e. the one that I replied to) get flagged as the "Answer" and who "Found this helpful?"  You did not provide a solution.  Rather, you asked questions and were never heard from again.  Please unflag this post as being the answer, because it's not. 

This confirms my suspicions about answers.microsoft.com: I believe that some (not all) moderators are more interested in hyping their credentials by having their responses flagged as the "Answer" than they are with providing real solutions/support.   They swoop in shortly after a question has been asked, ask a few questions themselves, then ride off into the sunset without following up, let alone providing a solution.  This thread is clear evidence of that and it's not hard to find other examples.

I can't help but to think that this type of behavior is a byproduct of the "look at me culture" that's been created by social media on the internet.  Lots of flash and hype, with very little substance.  If I'm wrong, then this particular moderator would have followed up and attempted to answer the question.  But he did not.  He got his props and moved on, even as the discussion raged on.  That's not moderation and it's certainly not support.  Who's moderating the moderators?  Anyone?

It's a shame that Microsoft chose a quasi social media platform to host its help forums.  It's often ineffective and I'm certain that it's a big turn off to a lot of users, especially those who rely on Microsoft software to help them derive their livelihoods.  Microsoft really needs to rethink this.

Point taken.  But not everyone runs multiple calendars, and for those who don't, there's absolutely no reason to have the Outlook.com app and/or Contact Editor installed.  They are unnecessary.

See my earlier post in this thread dated April 22nd for the simple solution you seek.

MS‘s outlook.com app on android can not creat contacts ,I am disappointed to that.

U said the method is worth a try,tks!

Wow. Contact Editor was the missing link. I was hoping getting a smartphone and linking with outlook would simplify my life. Silly me. As someone said earlier, is simple syncing my mail, contacts, calendar, and tasks too much to ask? Syncs works, but oh, "you want to edit that outlook contact on your phone? Well, that's something we didn't think about."

Really?