Since the update, all my timesheet are no more linked to my sales. Can anyone give me help for that?
Do you want to generate invoice based on the timesheet?.
We have to do some configurations, thereby it can be managed properly. Please check this documentation, https://www.odoo.com/documentation/14.0/applications/sales/sales/invoicing/time_materials.html#:~:text=Send Quotations-,Invoicing Method,-Invoice based on