Purchase Order Process in Construction: All You Need To Know
- Cost Construction Accounting

- Jul 5, 2024
- 4 min read
Updated: Oct 1
In the complex world of construction, managing finances and resources efficiently is crucial for project success. One key aspect of this management is the purchase order process flow. Understanding and optimizing this process can lead to better cost control, improved vendor relationships, and smoother project execution.
In this comprehensive guide, we'll explore everything you need to know about the Purchase Order Accounting process in construction, focusing on how a streamlined purchasing process and effective purchase order management can enhance operational efficiency.
Table of Content:
What is a Construction Purchase Order?
A construction purchase order (PO) is a formal document issued by a contractor (both the buyer and the purchaser) to a vendor (seller), indicating types, quantities, unit prices, and agreed prices for products or services. In the construction industry, POs are used to order materials, equipment, or subcontractor services needed for a project.
Key Components of a Purchase Order:
Buyer and Supplier Information: Contact details and addresses.
Order Date: The date the PO is issued.
PO Number: A unique identifier for tracking and future reference.
Item Description: Detailed list of materials or services.
Quantity and Price: Specific quantities, unit prices, and agreed-upon prices.
Delivery Date and Location: Delivery schedules specifying when and where the items should be delivered.
Terms and Conditions: Payment terms, applicable discounts, warranties, and other conditions.
Why Purchase Orders are Crucial in Construction
Streamlined Procurement: POs ensure a clear and organized construction procurement process, reducing the chances of errors and misunderstandings.
Cost Control and Procurement Costs Savings: By specifying quantities and prices upfront, POs help manage and control project costs effectively, leading to significant cost savings.
Improved Supplier Relationships and Customer Satisfaction: Clear communication through POs fosters better relationships with preferred suppliers, ensuring timely delivery and quality materials.
Legal Protection: POs serve as legally binding contracts that protect both parties in case of disputes.
Enhanced Record Keeping and Financial Control: POs provide a clear paper trail essential for auditing, invoice matching, and compliance purposes, improving financial records and reporting.
The Purchase Order Process in Construction
1. Identifying the Need
The PO processing begins when a need for materials or services is identified on a construction project. This could be based on the project schedule, inventory levels, or unforeseen circumstances.
2. Creating a Purchase Requisition
A purchase requisition is an internal document requesting the procurement of goods or services. It typically includes:
Description of items needed
Quantity required
Desired delivery date
Project or cost code for accounting purposes
3. Vendor Selection and Bid Comparison
For significant purchases, multiple vendors may be considered. This involves:
Requesting quotes from different suppliers
Conducting a bid comparison to evaluate prices and terms
Considering factors like quality, delivery time, and vendor reliability
4. Purchase Order Creation
Once a vendor is selected, a formal purchase order is created. A typical purchase order construction includes:
PO number
Date of issue
Vendor information
Delivery address and date
Item descriptions, quantities, and prices
Payment terms
Any special instructions or terms and conditions
5. PO Approval Workflow
Many construction companies have a PO approval workflow to ensure proper oversight:
The PO is reviewed by the project manager or supervisor
It may then go to the purchasing department for verification
For large purchases, additional approval from senior purchase order management may be required
6. Sending the PO to the Vendor
Once approved, the PO is sent to the vendor. This is increasingly done electronically through construction project management software or specialized purchase order system.
7. Order Confirmation
The vendor should confirm receipt of the PO and verify that they can fulfill the order as specified.
8. Receiving and Inspection
When the ordered items are delivered:
The quantity and condition of goods are checked against the PO
Any discrepancies are noted and communicated to the vendor
The receipt is recorded in the inventory or project management system
Common Purchase Order Process Challenges
However, managing the purchase order process in construction can be complex. Here are some of the most common challenges encountered:
Inaccurate or Incomplete Information: Vague or missing details on material specifications, quantities, or delivery dates can lead to wasted time, delays, and potential project cost overruns.
Manual Processes: Relying on paper-based PO systems can be time-consuming, prone to errors, and difficult to track.
Poor Communication: Lack of clear communication between contractors, vendors, and project managers can lead to misunderstandings throughout the purchasing process.
Inefficient Approval Workflows: Lengthy internal approval processes can delay PO issuance and impact timely material deliveries.
Multiple Projects and Locations: Managing POs across various job sites can be complex.
Best Practices for Construction Purchase Orders
To optimize your purchase order process flow, consider these best practices:
Standardize your PO format and numbering system
Implement a clear approval process with defined thresholds
Regularly review and update your approved vendor list
Conduct periodic audits of your PO process for compliance and efficiency
Train all relevant staff on proper PO procedures
Use construction project management software to automate and track POs
Conclusion
A well-managed purchase order process is essential for effective cost control in construction projects. By optimizing each step, construction companies can enhance financial management, strengthen vendor relationships, and deliver projects more efficiently.
Maintaining a streamlined purchase order process is crucial for efficient project management. However, managing multiple vendors, tracking orders, and ensuring accurate record-keeping can be complex, particularly for businesses handling numerous projects.
Construction Cost Accounting offers comprehensive bookkeeping services to manage your construction finances. Our team of experts can help you implement construction management software and select purchase order software with integrated PO functionality. We guide you through the implementation process to ensure seamless operations.
Contact us today for a free consultation and discover how our construction bookkeeping services can streamline your operations and free up valuable time.





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