Hi,

1. If you’re on Odoo Online (SaaS at odoo.com)

    The Delete button for expired databases often disappears.

    You cannot drop it yourself; only Odoo SA can.

    Solution: open a Support Ticket from your Odoo.com account and request deletion.

2. If you’re on Odoo.sh

    Go to your Odoo.sh project → Databases tab.

    You’ll see all staging/production databases.

    There’s a trash/delete icon next to databases (unless expired).

    If not visible, you may need to archive the branch linked to it, which will remove the related database.

3. If you’re On-Premise (self-hosted)

You have full control via the database manager or command line:

    Database Manager (Web UI):

        Go to https://yourdomain.com/web/database/manager

        Log in with the master password

        Select your dummy database → Click Delete

    Command Line (PostgreSQL):

    # list databases

    psql -U odoo -l

    # drop the dummy db

    dropdb -U odoo dummy_db_name

Hope it helps