Advantages of the AsyncTypeahead over built in Outsystems DropdownSearch

• Unlike the built in DropdownSearch widget, which can only search though client side values (eg. the first 50 results of an aggregate), this control allows you to refresh the aggregate on search input. This allows efficient searching of huge numbers of number of items (assuming you are searching on indexed fields). 
• The async typeahead also supports Mandatory functionality (by mimicking the behavior of the Outsystems "native" Dropdown)
• The async typeahead also supports custom error messages and validation
• The async typeahead is built 100% in Outsystems, so can be customized for your project without needing to learn external frameworks / libraries