docs/8.0/ayanova/docs/inv-purchase-orders.md

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 # Purchase orders
 
-The Purchase orders [form](ay-start-form-overview.md) is part of the [AyaNova inventory system](inv-part-inventory-transactions.md#how-inventory-works) and is availabled when [inventory is enabled](adm-global-settings.md#use-inventory) in AyaNova.
+The Purchase orders [form](ay-start-form-overview.md) is part of the [AyaNova inventory system](inv-part-inventory-transactions.md#how-inventory-works) and is availabled when inventory is [switched on](adm-global-settings.md#use-inventory) in AyaNova.
 
 Purchase Orders are used to:
 
-- identify the quantity of [parts](inv-parts.md) and the the price for those parts that you want ordered for inventory
+- identify the quantity of [parts](inv-parts.md) and the the cost for those parts that you want ordered for inventory
 - restock the [required minimum quantity level](inv-part-stock-levels.md) for parts that have gone below their minimum required inventory levels
-- fulfill [part requests](inv-part-requests.md) for workorders and track the connection between the work order and the purchase order
-- automatically [notify](home-notify-subscriptions.md) users that the parts they have requested to complete a work order are received
+- fulfill [part requests](inv-part-requests.md) for workorders, track the connection between the work order and the purchase order and automatically [notify](home-notify-subscriptions.md) event subscribers that the parts they have requested to complete a work order are received
+- increase on-hand inventory levels and update the [available serial numbers](inv-part-serials.md) when parts are received
 
 ## Authorization Roles required