The search and column sort functionality of my listings does not work.

It is very likely that you have activated Performance View, a mode that allows you to view large volumes of items in a list more quickly.

It applies to the following sections:

You can enable it manually where you need it most, but note that it will be activated automatically if the list of contacts, products or the journal exceeds 3,000 items. To enable or disable it, click on the three-dot menu and select Basic View or Performance View as appropriate.

Remember that with performance view enabled, the search functionality is limited. See the table below to see what you can search for by listing: