I am using V14 of ERPNext.
In this tutorial is explained how to change naming series for sales invoices:
https://docs.erpnext.com/docs/v13/user/manual/en/setting-up/settings/naming-series
There is no Home > Settings > Naming Series and when I search it finds no results.
Altering the form itself gives me this error:
You can’t set ‘Options’ for field Series
Some help here would be greately appriciated