Projects automatic numbering – workaround using client custom script

See this reply and try to do the same for your case in projects, it would probably look like this:

def autoname(doc, method):
    doc.name = doc.project_name

Also, don’t forget to update your hooks file with the correct event for the correct doctype. Here’s an example:

doc_events = {
    "Project":{
        "autoname": "myapp.myapp.validations.validations.autoname"
    }
 }

If it is possible via Customize Form, I don’t know about it.

Also use this app for reference if you get lost somewhere :