Steps to Change Default Website in Odoo (UI Method)

1. Activate Developer Mode
   • Go to Settings → Scroll to the bottom → Click "Activate Developer Mode".
2. Go to Website Settings
   • Navigate to Website > Configuration > Settings.
3. Set Default Website
   • If you have multiple websites created, you’ll see a section named "Website to use by default" (or similar).
   • Select the desired website from the dropdown.
4. Save Changes

 Notes:

• This default setting is per database.
• Ensure the domain mapping in the Website > Configuration > Websites section is correct to avoid redirects.
• Users can also manage multiple websites based on domain rules.

Hi,

You can set the default website as in image

For managing multiple websites in Odoo, you can refer to the following link

*  https://www.cybrosys.com/odoo/odoo-books/odoo-16-development/website-development/multi-website/#:~:text=The%20Odoo%20Websites%20module%20allows,option%20and%20complete%20this%20form.

* https://www.cybrosys.com/blog/how-to-set-up-a-multi-website-with-multiple-domains-using-odoo-15

* https://www.youtube.com/watch?v=SLWUR1SX0Ug

Hope it helps