Currently for several doctypes the title is the customer by default. However we often sell to the same customer. A more effective title would be the document name. {name} and {id} don’t work. How do I reference the document name from another field?
Also, the documentation says “If you want a fixed title, you can set the rule in the Options property. In this way, the title will be automatically updated every time the document is updated.” however when I try setting “Options” that instead of “Default” on the title data field, suddenly I can no longer open documents of that doctype and I have to revert that field’s setting.
EDIT: even stranger, this document:
https://docs.erpnext.com/docs/user/manual/en/document-title-with-multiple-fields
says you can use HTML or read-only type field as a title field, but this document:
https://docs.erpnext.com/docs/user/manual/en/customize-form
says it has to be a data type field.