To prepare for the Odoo 18 Functional Certification, prioritize mastering the official documentation and gaining hands-on experience with Odoo 18. Focus on core modules like Sales, Inventory, Accounting, CRM, and Purchase, understanding their configuration and how they support end-to-end business processes. The exam will primarily focus on the topics and modules outlined in the official certification description.

Be prepared for tricky question styles, including "choose all that apply," negative questions, and scenario-based questions. Pay close attention to configuration options and subtle details in the questions. Utilize resources like the official Odoo documentation, Odoo forums and communities, and consider training courses or mock tests offered by Odoo partners. Engaging with the Odoo community and practicing with mock tests will further enhance your preparation.

NOTE:

* Practice using a live Odoo database (Odoo Online / Runbot / Local Instance)

* Try solving functional case studies and business scenarios (like approval flows, expense reports, accruals, etc.)

* Join the Odoo Forum and Odoo Discord to interact with others preparing for the exam

* Review older exam questions (posted by users) to get a feel of the format

Refer to the following.

-https://www.odoo.com/sl_SI/slides/odoo-certification-sample-test-50

- https://www.youtube.com/watch?v=JYaAoMnQvhM