Hi,

Please refer to the link:

1. https://www.odoo.com/documentation/19.0/applications/services/timesheets/billing_rates.html

Billing Rate Indicators: Navigate to Timesheets > Configuration > Settings and enable Billing Rate Indicators to set personalized billing rate targets for employees.

2. https://www.cybrosys.com/blog/how-to-automate-invoice-generation-on-payment-confirmation-in-odoo-19

Automatic Invoice Generation: To automate invoice creation upon payment confirmation, go to Sales > Configuration > Settings and activate the Automatic Invoice feature.

Hope it helps.