Purchase order (PO)

A legal document to another entity requesting for supply of goods / services for specific terms and conditions.

The buying entity’s request or instruction to a vendor (external supplier) to supply certain materials or render/perform certain services/works, formalizing a purchase transaction.
 

What is Work Order (WO)?

Work Order

This term is used in many places.. In the Production Planning module, Production orders for assembly is a work order.

In the Plant Maintenance module, internal work orders are used for Maintenance / Repairs / Installation, modification or removal of equipment’s

The exact definition varies in different organizations. This is typically a PO for services to be done within the company premises (Work inside the company - hence work order).

I have also seen it being used for PO for maintenance orders (for materials and services).

See also
PO Terminated When Display Delivery Address

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