Hi! 

I currently have my Odoo database synchronized with my Shopify store using n8n. 

I need to enhance it by adding coupon codes, already created in Odoo, but I can't figure out how.

I'm using the Odoo node to create sales order but, I can't find a field to apply the promo code. 

Does anyone know how to do this? Perhaps using Python code after creating the sales order? 

Thanks! 

Fran