PO number

Glossary

A PO number identifies an approved purchase order and helps multifamily teams track expenses, invoices, and vendor payments.

Definition

A PO number is the unique identifier assigned to a purchase order. In multifamily operations, a purchase order is a formal document that authorizes a vendor to provide supplies, parts, or services and helps define what was approved for purchase. The PO number connects the approval, vendor invoice, and payment record so the expense can be tracked from request through payment.

Example

A maintenance supervisor needs to replace several failed water heaters. After approval, the property issues PO #PROP-2026-014 to the plumbing contractor, and accounting later matches the contractor’s invoice to that PO number before payment.

Why It Matters?

PO numbers help operations leaders maintain financial control across properties by showing which expenses were approved, who authorized them, and what work or materials they covered. They also support cleaner budget tracking, vendor communication, and invoice review—especially when teams need to balance urgent property needs with spending controls.

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