I have a problem/question.
My client need to sell one product but the price of this product (digital, so no shipping cost or other) is based on a field in a table. Explain: X categories and Y places. Each combination of X per Y return a different price for the only 1 product.
How can I set the price of this product at "checkout" ? In node Z (where categories is 1 and places is 2, for example) I can write the correct cost value (via preprocess_node, or template function or other), but in the cart?