Noob's question about data reset.

Hi everyone i'm new here and please excuse me for my bad english. Can anyone here give me some detailed information about resetting my data? such as:

-Can i input invitation code again?

-Will i be able to do newbie quest over again?

-Is it a complete deletion or there'll be some tidbit remains, like ally & etc.

-And lastly if i can do boot camp quest again, is it possible to just bank all your treasure somewhere else and then keep reset your data over and over?

That's all i need for now and thank you.

It just resets the data on your device. Nothing about your account changes. The purpose of this function is in case the files on your device become corrupted and need to be re-downloaded.