In odoo 17, I tried to create mail.message using a public user account via API with values ​​as

{ "body": "test", "model":"helpdesk.ticket","res_id":211, "message_type":"comment"}

Used to create a mail.message map with the helpdesk.ticket table

:

Uh-oh! Looks like you have stumbled upon some top-secret records

that I do not have permission to create records even though I have set mail.message full access permission

please help me.