How to use "Build collection activity"?

[Rawan_Ghurab]

I want to built a collection
How to use “Build collection activity”??

it shows me an error , I put CollectionB in next item field

[Yoichi]

Hi,

Can you try as the following?

First, set single item at First item property.
Next, set remaining items at Next items property.
Finally, set List<T> type variable at New Collection property. This type seems to be determined from type of first item. (And output type should be set not ICollection<T> but List<T>

Regards,