Hello,

To display customer details on reports such as offers and invoices in Odoo 17, you'll need to customize the report templates. Here's a general guide on how to do this:

• Access the Odoo Studio: In your Odoo instance, go to the Studio app. This app allows you to customize various aspects of your Odoo implementation, including reports.
• Edit the Report Template: Once in the Studio, navigate to the report you want to customize (e.g., offer or invoice). Click on the report to open its template for editing.
• Add Customer Details: In the report template editor, you can add fields to display customer details. You can do this by dragging and dropping fields from the customer's model (usually res.partner for customers) onto the report template.
• Save Changes: After you've added the necessary fields, save your changes.
• Test the Report: Generate an offer or invoice in Odoo to see if the customer details are now displayed on the left side of the report.

If you encounter any specific issues or need further assistance, feel free to ask!

Hope this helps.