/ Journal. The Odoo knowledge library

Integrations and data

Imports, external IDs, the API, migrations that don't lose data.

API, connector or iPaaS: how to connect Odoo to your other systems

API, connector or iPaaS: how to connect Odoo to your other systems

There are four ways to connect Odoo to another system: the native API, a custom module, a prebuilt connector, or an iPaaS sync layer. They are not better or worse in the abstract. Each fits a differen...

May 3, 2026

Migrating your data into Odoo without losing history (a clean import plan)

Migrating your data into Odoo without losing history (a clean import plan)

You migrate into Odoo without losing history by importing master data and open transactions, bringing opening balances instead of old journals, and keeping the closed history readable outside Odoo. Yo...

Apr 11, 2026

Fixing the "external ID" errors when you import data into Odoo

Fixing the "external ID" errors when you import data into Odoo

These errors mean the same thing: your import points at a record that does not exist in the database yet. Add an id column to every file, reference parents with the /id suffix, import parents before c...

Mar 19, 2026