Hi,

Odoo offers both SaaS (Odoo Online) and On-Premise deployment options, each with distinct characteristics. Odoo SaaS handles hosting, maintenance, and updates, offering limited customization through Odoo's App Store. It's available in different plans, including a free option, and suits businesses seeking a hassle-free experience. On the other hand, Odoo On-Premise requires you to manage hosting, maintenance, and security, but grants full code access for extensive customization. It necessitates a "Custom Plan" subscription and is ideal for businesses needing complete control or specific compliance.

When importing Odoo SaaS databases to an on-premise installation, character encoding issues with special characters like 'ë' in database names can cause errors. It's best to avoid such characters. Also, login credentials from Odoo SaaS don't transfer automatically. To resolve this, reset the administrator password via the command line, using the command: ./odoo-bin -d YOUR_DB_NAME --db-filter=YOUR_DB_NAME --admin-password="a_new_password". Then, log in with the username "admin" and the new password.

For on-premise installations, ensure Odoo version compatibility, manage dependencies, configure the odoo.conf file correctly (especially db_name and db_user), and verify that your firewall isn't blocking the Odoo port. If problems persist, provide specific error messages for more accurate diagnosis.

Hope it helps