Odoo is the world's easiest all-in-one management software. It includes hundreds of business apps:
CRM | e-Commerce | Accounting | Inventory | PoS | Project management | MRP | etc.
I created a many2one field(named file_no_tn) in project.task.form.When i select the value of another field field_type as "Trademark" this field displayed.For each task i add a file_no_tn for it.But the file_no_tn should be unique for task.Is it posible?
For task T1,
we select file_no as TM 4533
Then for Task T2,
we should not hav to select TN 4533 again
but now we can select
How can we make restriction for this selection?