Extensions > My extensions > Appsin the admin and then click on the right side of the app "Tree per Order (Cloud)" on
Savebutton. Depending on the provider, separate setup steps may need to be taken into account.
Donation product ID. The purpose behind it: This field is used to determine which donation product will be added to the shopping cart later at the end of checkout.
Donation product IDfield. So there is nothing to consider here.