Our autocomplete feature saves a lot of time but the list has grown and has many duplicate entries as our user base has grown. We recently added improved local inventory support, and are now taking this a step further. You can still choose to use the global list to build your local inventory, as you select parts they will be copied to your local inventory.
Other updates include being able to completely switch off global autocomplete and manage your stock independently. In this case any new parts added on an invoice, or on the Inventory screen, will be added for use in your local inventory and autocomplete.
If you are using the global autocomplete and stock management, you need to ensure you are selecting the corresponding part that has previously been added to your local inventory, admittedly this can get confusing, so it may be easier to decide on using global and switching it off after Inventory is built up with your most used parts. The global list will still be useful to new users.