In Odoo, you can create a recurring invoice using the "Recurring Invoices" feature. Here are the steps you can follow to set up a recurring invoice:

Go to the Sales module, and then click on the "Invoices" menu.

Click on the "Create" button to create a new invoice.

Fill in the customer information and the invoice details as you normally would.

In the "Other Information" section, you will find a "Recurring" field. Here, you can set the invoice to recur on a daily, weekly, monthly, or yearly basis.

Set the number of times the invoice should recur.

Click on the "Validate" button to create the recurring invoice.

Once you've set up the recurring invoice, it will automatically create new invoices for the customer at the specified intervals.

You can view, edit and manage the recurring invoices from menu Invoicing -> Recurring Invoices.

You can also set rules for invoice generation, for example, you can set the invoice to be generated on the first of the month, or on the 15th of the month.

Note that you can also set up recurring journal entries using the "Recurring Journal Entries" feature in the Accounting module. This works in a similar way to recurring invoices, but is used for creating recurring entries in your accounting journals