At Synodica, 
we understand that sometimes you need to change the default country setting for your Odoo database. Changing the database country in Odoo 15 involves updating the company settings and potentially some localization settings. Here’s how you can do it:

Step-by-Step Guide to Change the Database Country in Odoo 15

1. Change Company Country:
   • Go to Settings -> Users & Companies -> Companies.
   • Select your company.
   • In the General Information tab, find the Country field.
   • Change the country to your desired country.
   • Save the changes.
2. Update Users’ Country:
   • Go to Settings -> Users & Companies -> Users.
   • Select each user and go to the Preferences tab.
   • Change the Country field if needed.
   • Save the changes.
3. Update Localization Settings:
   • Go to Settings -> General Settings.
   • Scroll down to the Localization section.
   • Update the Country field if it’s available.
4. Check Fiscal Position:
   • Go to Invoicing -> Configuration -> Fiscal Positions.
   • Ensure that the fiscal position aligns with the new country’s tax requirements.
5. Update Partner Records:
   • If necessary, update the country for key partner records (e.g., customers and suppliers).
   • Go to Contacts -> Customers or Suppliers and update the country field for each record.