From Release 3.0E, the system takes into account in the collective confirmation the parameters for the confirmation, that you set for each order type using the Customizing function.
This was previously the case only for individual confirmations.
For example, a corresponding setting of the confirmation parameters allows you to perform final confirmation for an operation by entering a combination of order number and operation number only.
Check that the control parameters for the confirmation are set in such a way that they also apply to a collective confirmation: