Board Thread:Tapped Out Help/@comment-26847811-20140626173448/@comment-5014012-20150404035333

220.240.2.86 wrote: Will this affect any quests in the side bar?

I'd assume it would until you place the item that gives you the character/building related to a task. Even the normal way of adding something to the inventory causes the attached character to be hidden from the game while the item is packed away.