Collective invoice: suborder cannot be added
In case it is not possible to add a certain Suborder to a Collective invoice (c.q. the Suborder is not included in the list of the Suborders that can be selected), this can have multiple reasons. The two most frequent ones are:
- The Suborder is already linked to another Collective invoice;
- The (Sub)order has another InvoiceRecipient.
The InvoiceRecipient of the Collective invoice and the (Sub)order need to be the same in order to add the latter to the former.