konnichiwa, minnasan or minnasan konnichiwa

Hi. So recently in a group chat of mine, i introduced myself and greeted everyone with konnichiwa minnasan. But then, someone in the group pointed out that the correct way is to say minnasan first (minnasan, konnichiwa). Bur i am not sure if that is the onyl way to say it or what i said is also correct. So can you guys please enlighten me in this topic. Thankyouu

It's minnasan, konnichiwa....

It is Minasan, konnichiwa the correct pronunciation.
It is not a Minnasan.
The order is good either.

Either is OK, but "Mina-san, konnichiwa" is more natural.

If you think of saying this at the beginning of a speech/greeting in front of an audience, with "mina-san" at the beginning, you get everyone's attention, then you say your greeting "konnichiwa," and the audience returns the greeting "konnichiwa" immediately after that.

And yes, it is "mina-san," not "minna-san."

AK:

That's something I was curious about - I had seen it written both ways in hiragana before (みんな and みな) and my teacher, who is Japanese, always wrote it and pronounced it with the extra 'ん' in it.

Is it a matter of preference, or is one actually more 'correct' than the other?

Thanks.

みんな,OK
皆=みな,OK
皆さん=みなさん, OK
みんなさん, No

みな is the correct pronunciation. but, many people add ん for easy pronunciation (みんな), especially for friends and coworkers. みんな may not be used to persons of higher position.
there is no word of みんなさん, probably because the word (みんな) itself is impolite, while さん makes the word polite. (mismatch of the usage)

frippscratch,

As ken explained, as stand-alone words "minna" AND "mina" are correct. But there is no such word as "minna-san" :)

Just to clarify...

The kanji 皆 can be read both as みんな (min-na) and みな (mina). It's often a matter of preference, but usually judged by the context.

The hiragana みんな can only be read as min-na.

The hiragana みな can only be read as mina.

You never say min-na-san.

Hope it helps.

Thank you all for the clarifications.

I'll need to go back and reread my teacher's book to see if he had that information in there and I just missed it.