Dear all,

can anyone here help me to create schedule action to Lock PO.

i tried to create Schedule action in odoo 11 to lock PO like below. 

Model = Purchase Order

Action To Do = Execute Python Code

Python Code = model.button_done()

but when i run this schedule action, Nothing happend. PO not Locked at all.

thank you very much for any responses

kind regards,

Giri