I'm a beginer in OpenErp. I'm trying to change default shop_id in sale.orders. But in sale_data.xml:

<function eval="('default',False,'shop_id', [('sale.order', False)], sale_shop_1, True, False, False, False, True)" id="sale_default_set" model="ir.values" name="set"/>

This code create an record in setting -> technical -> actions -> User-defined Defaults

 In my code, I write: 

<delete model="ir.values" id="sale_default_set"/>

But it doesn't work. Someone help me with this problem.

Thanks you so much, :D.