Buyable items are updated through Abrosia and through neon AP the shop auto pricer. Only unbuayble items can be updated manually. The price may be different in our database because our database does not show the absolute lowest price an item will sell for.
I'm not sure on the scheduler though.
Thanks for the quick reply and the information on the pricing.
I took a chance and left the scheduler on while I was away and it's working as intended.