Background of the issue:
I am working on a site under development and trying to set up a copy of the site. The site URL is hidden link. I am not following any documentation.
Symptoms:
No specific issue or error message mentioned.
Questions:
How do I set up a copy of my site using WPML?
For a new/separate WordPress setup and different domain, you will always need to go here (https://wpml.org/account/sites) and generate a new site key for that new domain. While in the process of creating the key, you can also set the key as "Production" or "Development."
Here is a small tutorial on how to use Duplicator: hidden link
This plugin should also easily take care of the URL-replacing process.
After migration, register WPML in your new site and enter the new key:
Please Login to your WPML account >> go to the "Sites" page (https://wpml.org/account/sites/) >> Remove your old site/domain from there >> and add your new site >> it will give you a new key which you can add back in your site in Plugins > Add new > Commercial.
You might want to take a look at this page, too, as it contains essential information that you might need when WPML sees that the current site has been copied over a different domain. You must set that new site to "this is a copy of the main site."
I hope that you will find this information helpful.
Sorry, I did not realize you would like to set up a new WordPress environment from scratch.
In that case, you will need to redo the WPML settings (in case you have changed specific settings), and regarding the content, you will need to move it manually (export it from the current site and import it into the new site).
A migration plugin (like "Duplicator") will practically migrate everything from your current site (including the other plugin's data and files). From my understanding, you don't want that, so the manual method is the way to go.
Regarding updating translations in the current site, you can do that, but there won't be any connection between the two sites because the second one is built from scratch, so the updated content would need to be migrated again.