It's surprising that customers would need to provide feedback on sorting and filtering, but it really needs a major overhaul in orderhive. For example:
  1. Purchase orders are not sorted by PO number on the Purchases tab.
  2. Many drop down lists are not sorted alphabetically - supplier filter on Purchases tab, Supplier selection drop down while creating a new PO.
  3. Limited sort options on Orders tab. No sorting options anywhere else.
With the (re)introduction of grid view everywhere. Sorting and Filtering should be merged with the column headers (as you would find literally anywhere on the web or in an app that has an interactive table)
Also, and this is unrelated to sorting/filtering, Grid view really needs to provide an option to freeze the first few columns - or remove a few columns.