Hello Sumanth,

For this you need to enable the debug mode and go to the groups and search "Show Full Accounting Features" and add related user in this group.

Thanks.

You should to add an user for example an administrador to this option group.

after that refresh your browser or deactivate debut mode.

recently Odoo changes name of module from Show Full Accounting to simply Accounting

Hi,

If you activate full accounting feature, you will get some extra menus and features in the invoicing application.

See: How To Enable Full Accounting Features In Odoo Community Edition

Thanks