Purchase Order Software to Automate Approvals and Control

Stop managing purchase orders across emails and spreadsheets. Keel's custom PO software gives your team structured approval workflows, real-time spend visibility, and complete audit trails — built around your actual procurement process, not a rigid off-the-shelf template. From purchase request to receipt, take full control of every order.

Operations manager reviewing purchase order approvals on a modern software dashboard

Our Purchase Order Software Services

Everything you need to manage purchasing end-to-end, from PO creation and approvals to supplier tracking and receiving.

Automated PO Approvals

Replace email chains with structured, rule-based approval workflows. Set multi-level approval routing by spend threshold, department, or supplier, and get notified instantly when action is needed.

Supplier Management

Maintain detailed supplier records including pricing terms, performance KPIs, certifications, and preferred supplier rules — all in one place with full visibility for your procurement team.

Budget Tracking & Control

Monitor spend against budgets in real time, with automatic alerts for budget limits and category-level reporting dashboards so finance and operations stay fully aligned.

Requisition-to-PO Flow

Streamline the full purchasing journey from purchase request through to approved PO, with custom roles, permissions, and workflow steps matched to your exact procurement process.

Three-Way Matching

Automatically reconcile purchase orders, delivery receipts, and supplier invoices to eliminate discrepancies, reduce fraud risk, and accelerate payment approvals.

Receiving & Inventory Sync

Process full, partial, or over-receipts against POs with quality checks, discrepancy handling, and automatic inventory updates — keeping your stock levels accurate without manual intervention.

Total Spend Control

Custom PO Software Built Around Your Approval Process

Generic procurement tools force you to adapt your process to their rigid templates. Keel builds your purchase order software around how your team actually works — your approval tiers, your supplier rules, your budget structures. Fast-moving operations teams get complete visibility from requisition to receipt, with audit trails, three-way matching, and spend controls that scale as you grow. Go live in weeks, not months, and own the system entirely.

Procurement team using custom purchase order software to manage approvals and supplier data
Trusted By Operators

Success Stories

See how fast-moving operations teams replaced spreadsheets with purchase order software they truly own.

"Keel is incredibly powerful. Three days writing code and it all just works from the first attempt! The Schema allows for super easy and intuitive data modelling, particularly around the relationship syntax with all foreign keys sorted. I also just love the DevEx! It's well thought-out and far superior to..."

Jay

"Keel's built-in permission engine is incredibly secure and powerful — No other service does it this well!"

Jay

"Keel is truly one of the most obvious wins I've ever seen in the Ops world"

Usman Mahomed

"Keel is incredibly powerful. Three days writing code and it all just works from the first attempt! The Schema allows for super easy and intuitive data modelling, particularly around the relationship syntax with all foreign keys sorted. I also just love the DevEx! It's well thought-out and far superior to..."

Jay

"Keel's built-in permission engine is incredibly secure and powerful — No other service does it this well!"

Jay

"Keel is truly one of the most obvious wins I've ever seen in the Ops world"

Usman Mahomed

"Keel is incredibly powerful. Three days writing code and it all just works from the first attempt! The Schema allows for super easy and intuitive data modelling, particularly around the relationship syntax with all foreign keys sorted. I also just love the DevEx! It's well thought-out and far superior to..."

Jay

"Keel's built-in permission engine is incredibly secure and powerful — No other service does it this well!"

Jay

"Keel is truly one of the most obvious wins I've ever seen in the Ops world"

Usman Mahomed
The Keel Difference

Why Choose Keel for Purchase Order Software?

Keel was built by operations leaders who experienced first-hand why off-the-shelf procurement tools fall short.

Built to Own

Unlike SaaS tools, you own your PO system entirely — your data, your workflows, your rules, with no vendor lock-in.

Live in Weeks

Go from procurement brief to a fully deployed, custom PO system in weeks, not the months legacy ERP projects demand.

Flexible Approvals

Model any approval hierarchy — by spend limit, department, or supplier — with role-based permissions and full audit trails built in from day one.

Seamless Integrations

Sync your PO software with financial systems, inventory tools, and existing tech stack via robust APIs with no manual reconciliation needed.

Built by Operations Leaders

Meet the team that understands procurement complexity from the inside out.

Keel was founded in 2021 by three former executives — CEO, CTO, and CPO — from Echo, Europe's fastest-growing online pharmacy, later acquired by Pharmacy2U. At Echo, they built the custom operations software that powered shipments of 50,000 medicines daily to 600,000 customers, scaling the business to $130 million in annual revenue. They discovered first-hand that off-the-shelf tools couldn't keep pace with their operational complexity, so they built what didn't exist. Headquartered in Altrincham, Cheshire, Keel raised $6 million in seed funding in 2024 from leading European investors Earlybird and LocalGlobe — and is now on a mission to give every fast-moving operations team the flexible, powerful procurement tools they truly own.

4 YearsBuilding flexible operations software since 2021
$6M Seed FundingBacked by Earlybird and LocalGlobe in 2024
$130M Revenue ScaledFounded by operators who scaled Echo to $130M ARR

Frequently Asked Questions

What is a PO management system?

A PO management system is software that handles the full lifecycle of purchase orders — from creating and submitting purchase requests, routing them through structured approval workflows, issuing orders to suppliers, tracking delivery receipts, and reconciling invoices. It replaces manual processes like email approvals and spreadsheets with automated, auditable workflows that give finance and operations teams real-time visibility and control over all purchasing activity.

How is Keel's PO software different from off-the-shelf procurement tools?

What approval workflow features does the software support?

Can the system integrate with our existing financial and ERP tools?

How long does it take to go live with a custom PO system?

Does the software support three-way matching?

How does budget tracking work within the PO system?

Is our purchasing data secure, and who owns it?

Still Have Questions About PO Software?

Talk to a Keel expert and get answers specific to your procurement process.

Certified & Trusted

Awards and Recognition

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Earlybird & LocalGlobe Backed

Funded by leading European technology investors

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Open-Source Platform

Transparent, community-trusted open-source infrastructure

Ready to Automate Your Purchase Order Process?

Tell us about your current procurement workflow and we'll show you how Keel can replace your approval bottlenecks and spreadsheets with a system built exactly to your needs. Expect a response within one business day.

Contact Us Today

For immediate assistance, feel free to give us a direct call at You can also send us a quick email at bobbi@keel.xyz