# Why are supplier costs for inventory updated automatically when a supplier invoice is entered?

KB59

There is a system setting that controls this function. To turn it off, go to System > Preferences > Inventory > Edit > Untick Automatically update supplier prices on update of Supplier invoice > Update.

This is not a default setting – someone has selected this function to happen and may be relying on it. It would be worth checking that removing this preference won’t have an adverse effect on others.

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Last edit: 17/02/21