Drupal Commerce - creating node has the submition of a product + promotion products
I am looking to know if it is possible in drupal trade creates a product that will go directly creates the same node in the type of content that I plan to display my products.
Also I want a method to implement reductions on some products of my shop what solution there?
And last question I seek to know the most stable unit to make payment by credit card in drupal trade.
Thank you all for your answers