Indicate if a parent item is optional / required / forbidden


The list configurator is able to define the parent occurrence of items in a list. Items in a list can have 3 parent occurrence options: 

  • Optional: An item in this list may have a parent item (default option). 

  • Required: An item in this list must have a parent item. 

  • Forbidden: An item in this list may not have a parent item. 

Additionally, depending on the selected option, the possible lists when creating new (child) items is reduced to the available lists only. 

  • When creating child items, lists where no parent is allowed are not shown. 

  • When creating orphan items, lists where a parent is required are not shown. 

The option to link / unlink items is impacted by the parent occurrence option.