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I have created a new form and  i choose a PO as a source document and that field is as follow.


purchase_order = fields.Many2one('purchase.order', string='PO Number')

AFTER selecting a PO i want that vendor from that Purchase Order automatically 
fill my vendor field in that form.
i have a simple many2one field for vendors. 
Kindly help me with this problem i shall be very thankful.



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Best Answer

Hi,

For this you can use the related fields.

purchase_order = fields.Many2one('purchase.order, string="PO")
partner_id = fields.Many2one('res.partner', string="Vendor", related='purchase_order.partner_id')


Thanks

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Author

hey thanks for replying. it is giving error KeyError: 'purchase_field'. can you tell me what it is?

It's purchase_order.partner_id in the related, see updated Answer

Author

Man you are awesome! Thank You soo much