Hello,

By using odoo, I have a problem of deleting a chat application that will generate the deletion of all the other applications of which there is my data, the message:

Odoo Server Error - Validation Error

The operation could not be completed, probably as a result of:

- delete: you are trying to delete a record that other records refer to

- creation / modification: a required field is not correctly filled

[referenced object: mail_message - mail.message]

Thank you I need help.