It is different if configuration articles contain individual simple articles and only these configuration articles themselves and not the simple articles contain the custom options, then these are also displayed in the frontend.
Betreff: associate Simple Products with custom options to Configurable Product not working
I would like to define my problem again: Configurable article A has several simple articles A1, A2, A3 If simple articles A1, A2 and A3 contain the custom options, these options are not displayed in the frontend.
However, if the configurable article A contains the custom options and not the associated simple article, these options are displayed in the frontend. You can choose these options. If this article is in the shopping cart, the custom options will not be displayed. The options are also not displayed in the confirmation e-mail, because data from the simple articles are displayed everywhere and not from the configurable items. But A1, A2, A3 do not contain any options.