During the process of handling return order items, there is a series of searches performed to identify the received item. First, the item is searched within the expected returns. If it's not found there, the search continues within the items of the specific order. If still not found, the search extends to the products existing in the system. Finally, if the item is not found in any of the previous searches, it can be added as an incorrect item in the system.

The problem arises when these searches are conducted sequentially and rely on manual user input. There is a risk that the user may unintentionally skip a particular level of search, leading to an incorrect item being wrongly marked. To address this issue, implementing a unified search approach would eliminate the possibility of skipping a search step. By conducting a single comprehensive search across all the defined categories, the return order items can be accurately identified in a more efficient manner.