How to Manage Purchase Orders
Learning how to manage purchase orders is essential for any finance team responsible for controlling company spending.
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Purchase orders create structure in procurement. They ensure that every purchase is approved, recorded, and verified before payment.
Without a clear process, businesses face problems such as:
- Unapproved spending
- Duplicate purchases
- Supplier disputes
- Budget overruns
- Unexpected invoices
According to research from Ardent Partners, procurement leaders are increasingly focused on improving purchasing controls and financial oversight as businesses deal with rising costs and supply chain complexity.
A structured purchase order workflow allows companies to control spending before invoices arrive.
Businesses often use purchase order software to create approvals, track orders, and manage supplier invoices in one place.
What Is a Purchase Order?
A purchase order (PO) is a document sent from a buyer to a supplier confirming a purchase.
It typically includes:
- Supplier name and contact details
- Product or service description
- Quantity ordered
- Price per unit
- Total cost
- Delivery instructions
- Payment terms
Once the supplier accepts the purchase order, it becomes a binding agreement between both parties.
Purchase orders help finance teams track commitments before invoices are received.
They are a key part of purchase order management, which is the process of tracking orders from request to delivery and payment.
Why Businesses Need to Manage Purchase Orders Properly
When businesses fail to manage purchase orders effectively, problems appear quickly.
Common risks include:
- Employees buying without approval
- Budget overspending
- Invoices arriving without purchase references
- Difficulty auditing spending
- Fraud or duplicate payments
A structured purchase order process helps finance teams:
- Control business spending
- Monitor budgets before purchases occur
- Maintain accurate supplier records
- Reduce invoice disputes
- Improve financial visibility
Procurement leaders are also investing heavily in digital tools to improve control and reporting across purchasing operations, according to Deloitte’s Global Chief Procurement Officer Survey.
The Purchase Order Lifecycle
Understanding the full lifecycle helps finance teams manage purchase orders more effectively.
1. Purchase Request
A department identifies a need and submits a purchase request.
The request should include:
- Item description
- Estimated cost
- Supplier details
- Delivery date
Budget checks should confirm that funds are available.
2. Purchase Order Approval
Managers review the request before approving the purchase.
Approval workflows may include:
- Department manager
- Procurement team
- Finance manager
Using invoice approval software ensures each purchase follows company policy.
Approval workflows prevent unapproved purchases.
3. Purchase Order Creation
Once approved, the purchase order is generated and sent to the supplier.
The PO confirms:
- What is being purchased
- Quantity
- Price
- Delivery terms
Automated systems allow teams to generate POs quickly without manual data entry.
4. Goods Receipt
When the supplier delivers the goods or services, the receiving team verifies the order.
They check:
- Correct quantity
- Correct items
- Acceptable condition
This process is known as goods receipting (GRN).
5. Invoice Matching
When the invoice arrives, accounts payable performs three-way matching.
This compares:
- Purchase order
- Delivery receipt
- Supplier invoice
Matching confirms the invoice is valid before payment.
Automated invoice processing systems can perform these checks automatically.
6. Payment Processing
After approval, the invoice moves into the payment cycle.
Many finance teams schedule payments using systems designed for scheduled supplier payments.
This helps maintain supplier relationships while protecting cash flow.
Best Practices to Manage Purchase Orders
Finance teams can improve purchasing control by following structured practices.
Standardise the Purchasing Workflow
Every purchase should follow the same process.
Typical workflow:
- Purchase request submitted
- Approval workflow
- Purchase order created
- Supplier delivery
- Invoice matching
- Payment approval
Standardisation prevents confusion and errors.
Set Clear Approval Limits
Define approval thresholds based on spending levels.
Example:
| Spend Amount | Approval Level |
|---|---|
| Under £500 | Department Manager |
| £500 – £5,000 | Finance Manager |
| Over £5,000 | Director |
Approval thresholds speed up decision-making while maintaining financial control.
Implement Three-Way Matching
Three-way matching ensures invoices are paid only when:
- The purchase order exists
- Goods were delivered
- The invoice amount is correct
This process protects businesses from duplicate or fraudulent payments.
Invoice matching is often handled using invoice processing software.
Maintain Accurate Supplier Records
Finance teams should keep an organised supplier database.
This should include:
- Payment terms
- Bank details
- Tax information
- Supplier contacts
Accurate supplier records reduce invoice errors and improve payment accuracy.
Track Purchase Order Status
Finance teams should be able to track:
- Approved orders
- Orders awaiting delivery
- Pending invoices
- Scheduled payments
Real-time visibility helps departments manage budgets and forecast cash flow.
How Automation Helps Manage Purchase Orders
Manual purchase order processes often rely on spreadsheets and email approvals.
These create delays and increase the risk of errors.
Automation helps businesses manage purchase orders more effectively by providing:
- Digital purchase requests
- Automated approval workflows
- Real-time budget tracking
- Supplier invoice matching
- Spend analytics
Best-in-class procurement teams now manage over 90% of company spend through structured procurement systems, according to Ardent Partners’ State of Procurement research.
Automation removes manual tasks and improves financial control.
Businesses looking for best accounts payable software often prioritise tools that combine purchase orders, invoice capture, and approval workflows.
Common Purchase Order Management Challenges
Even organised finance teams face purchasing challenges.
Maverick Spending
Employees bypass the purchase order process and buy directly from suppliers.
This creates unexpected invoices.
Manual Data Entry
Typing purchase orders manually increases the risk of errors.
Automated systems remove duplication and reduce mistakes.
Limited Budget Visibility
Without purchase order tracking, departments may exceed budgets before finance notices.
PO systems show committed spending before invoices arrive.
Supplier Communication Problems
Suppliers sometimes send invoices without referencing purchase orders.
Clear PO numbering solves this issue.
How Zahara Helps Businesses Manage Purchase Orders
Zahara combines purchase orders, invoice processing, and approval workflows in one system.
This allows finance teams to control spending before invoices appear.
Key capabilities include:
- Purchase requests and approvals
- Budget checks before orders are placed
- Automated purchase order creation
- Supplier invoice capture and matching
- Integration with accounting systems
Zahara helps organisations simplify procurement and maintain financial control across departments.
You can explore the Zahara AP Automation features to see how the platform supports purchasing workflows.
Final Thoughts
To manage purchase orders effectively, businesses need clear processes and the right tools.
Strong purchase order management provides:
- Better spending control
- Faster approvals
- Accurate invoice matching
- Clear financial visibility
Manual systems often lead to errors and delays.
Automation helps finance teams track purchasing activity and maintain control over supplier spending.
If your team wants to improve purchasing workflows, explore purchase order software combined with accounts payable automation.
You can book a demo or start a free trial of Zahara to see how automation helps you manage purchase orders more efficiently.
FAQ
What does it mean to manage purchase orders?
Managing purchase orders involves controlling the full purchasing process, including request approval, PO creation, delivery verification, invoice matching, and supplier payment.
Why are purchase orders important?
Purchase orders help businesses control spending by documenting purchases before invoices arrive. They provide a clear audit trail and reduce payment errors.
What is three-way matching in purchase order management?
Three-way matching compares the purchase order, goods receipt, and supplier invoice to confirm that the purchase is valid before payment.
What software helps manage purchase orders?
Purchase order software and accounts payable automation platforms help businesses create orders, approve purchases, match invoices, and track supplier payments
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