There are some fields that the system treats them as system generated field. I am not sure how the previous developer created them. When I go to Doctype and see the default fields, those fields are not present, but they are on Customize Form.
When I try to Customize Form and remove those custom fields, it give me this message
“Cannot delete system generated field Meta Keywords . You can hide it instead.”
I was wondering how were these fields created and how can I remove them?
Thank you!
If you are not in developer mode, then turn on developer mode (on your local environment).
and
Instead of removing fields directly from the Customize Form, remove them from the Custom Field Doctype.
Please check these things first
1)Is there any Custom App installed on your Instance.
2)Are these custom fields exist in that custom App?
If above two points are true then you have to setup local instance and remove the custom field and export new customization in the Custom App.
Get new changes in the live instance and run
bench --site [site-name] migrate
If you remove the customization directly and not update the custom app
then on migrate the fields will create again.