Example in the Sales Invoice Listing as below picture, by default First Created Date and Last Modified Date cannot do sorting/searching, so invoice dated 04/11/2018 can appear in the middle of listing.
Step 1 - So can go into Customization Center expand QNE Business Solutions>Views
Step 2 - Expand QnEBS.BO.Sales
Step 3 - Look for SalesInvoices_ListView, change the DataAccessMode to Client
Step 4 - After restart QNE Optimum, check in the sales invoice listing it can do sorting now.
Please Refer KB - How to Access Customization Center