When you finish writing a book on Wattpad it's good to let your Readers Know that 'this Story is Completed'...
... - to let them know about that - you should go to Your book Settings by clicking 'My Works' on the left side of the screen & opening the whole list - then clicking on the given book Cover to open the book Settings.
Whe you do that - find the word 'Completed' at the bottom of the Screen in your book Settings & click on the white space on the right side of that word to move the marking from 'Not Completed' to 'Completed' & Click 'Save'.
If everything goes well - your book should be marked as 'Completed' after that - which will be visible when you click on it - as if you wanted to start Reading :)
- & Everyone who starts reading your book will also see that it's 'Completed'

YOU ARE READING
My WATTPAD Guide for New Users
RandomSome tips to help you use Wattpad right after joining it ( & some time after joining :) )