02Our PO Automation Process
From Inventory Review to Live, Approved Purchase Orders
You see exactly how reorder points, approvals and exceptions work before development starts.
05Projects We've Built
Ecommerce Projects We Have Built
A selection of Shopify and ecommerce builds shipped for clients, including inventory and purchase order automation like this one.
Ready to stop tracking reorders by hand? ⚡ Get a free quote!
LET'S DISCUSS06What Our Clients Say
What Clients Say After Launch
Feedback from teams we have built purchase order automation for.
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We had a different kind of problem. People were visiting the store, adding products to their carts, and then disappearing before they finished the order. We had tried a few apps and made changes here and there, but nothing really seemed to solve the bigger issue. The team went through the shopping experience with us and pointed out things we hadn't really noticed ourselves. They cleaned up the cart and checkout flow, made the mobile experience much smoother, and helped us make the store feel easier to shop. I’m not going to pretend we fixed everything overnight, but it finally feels like the store is helping the sale instead of getting in the way of it.
Ethan Parker
Founder of Elite Academy
The mobile experience is probably my favourite part of the new site. We had spent a lot of time making sure the desktop version looked right, and the team kept pushing us to think about how everything would actually feel on a phone too. They were right. The navigation is clean, the interactions feel natural, and everything we’ve tested so far works exactly as it should. They also went through the links, forms, integrations, and other details more than once before launch, which I really appreciated. And even after going live, we could still reach out when something came up. The whole process felt friendly, organised, and surprisingly straightforward.
James Whitmore
Head of Marketing of Lumen Outdoor
We had a pretty specific idea of what we wanted our website to become, but I wasn’t sure how easily we could explain all of it to a development team. There were quite a few moving parts, and we were working toward a deadline, so I expected a few things to get lost along the way. That never really happened. They understood what we were trying to achieve, kept us updated throughout the process, and got everything ready within the agreed timeline. The final site feels much easier to navigate, works beautifully on mobile, and is noticeably smoother for our customers. It was a huge relief seeing the original idea actually turn into the website we had in mind.
Michael Bennett
Founder & CEO of Northbridge Consulting
150+
Projects shipped
10+
Years in development
Top 3%
Upwork Top Rated Plus
5★
Average review score
07Work Culture
Why Businesses Trust Us With Their Purchasing
Getting a reorder point wrong means a stockout or excess inventory, so we calculate it per SKU rather than using one blanket rule. These are the habits we bring to every project.
Reorder points that stay current
Calculated per SKU from lead time and sales velocity, not a static spreadsheet rule.
POs sent your way
Email, API, or supplier portal, whichever your suppliers actually use.
Approvals built in
Routing rules by amount or cost center, so nothing goes out without the right sign-off.
Exceptions caught, not missed
A price or quantity mismatch flags for review instead of going through.
Synced with your systems
Inventory, ERP and accounting stay current without manual re-entry.
Built to scale with SKU count
Handles growing product catalogs without more manual tracking.
08Overview
How does automatic purchase order generation on low stock work?
DeveloperLook builds purchase order automation that calculates a reorder point per SKU from lead time, average sales velocity and safety stock, then sends the PO to your supplier by email, API, or portal once stock hits that level. Approval rules route POs by amount or cost center, and exceptions like a price mismatch get flagged for review instead of going through automatically. Projects start from $799, most live in 1 to 3 weeks.
- Service
- Purchase order automation development
- Starting price
- From $799 USD, fixed scope after an inventory review
- Typical timeline
- 1 to 3 weeks
- Platform
- Syncs with your inventory system, ERP, and accounting software
- Built with
- Reorder point logic, REST APIs, EDI or email transmission, approval rules
- Experience
- 10+ years and 150+ shipped projects
- Post-launch support
- 30 days included, then optional monitoring retainer
- Communication
- Calls in US, UK, and AU business hours
Who it's for
Businesses generating POs by hand when stock runs low
Someone checks inventory levels manually and creates a purchase order in a spreadsheet or email.
Businesses with per-SKU reorder points that need to stay current
Lead times and sales velocity vary by product and supplier, and static reorder rules don't keep up.
Businesses wanting POs to reach suppliers without manual sending
You want a PO to go out by email, API, or supplier portal automatically once it's generated.
Businesses needing approval control before a PO goes out
Purchase orders over a certain amount need sign-off before they're sent, and that approval currently happens over email or Slack.
Businesses whose POs don't sync with their ERP or accounting
A purchase order gets created in one place and re-entered into your ERP or accounting software separately.
Not a fit for
You need invoice automation or supplier invoice matching specifically, not PO generation. Our Invoice Automation Software service covers that.
You want a broader process audit before committing to a PO automation build. Our Business Process Automation Services covers that assessment first.
You already know exactly which workflow tool you want this built in. Our n8n, Make and Zapier automation experts service covers that tool-specific work.
You need a full inventory management system rather than PO automation specifically. Our Shopify Inventory Management System service covers that broader build.
11The Right Technology for Your Project
Technology Stack
We build reorder logic, PO transmission and approval rules around your inventory, suppliers and accounting software.
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12FAQ
Frequently Asked Questions
Straight answers on reorder points, supplier transmission, and approvals.
How does automatic purchase order generation on low stock work?
Each SKU gets a reorder point calculated from its lead time and average sales velocity, plus a safety stock buffer. Once stock drops to that level, a purchase order generates automatically with the right quantity and supplier details.
Can a PO be sent to my supplier when stock hits a set level?
Yes. Once the reorder point triggers, the PO can be emailed, sent through the supplier's API, or pushed to their portal automatically, without anyone creating or sending it by hand.
How do you set reorder points per SKU?
We calculate it as average daily sales times lead time, plus a safety stock buffer sized to that product's demand variability and supplier reliability. Each SKU gets its own reorder point rather than one blanket rule.
How much does purchase order automation cost?
Projects typically start from $799 for a single-supplier setup, and scale with the number of suppliers, SKUs, and systems involved. You get a fixed quote after an inventory review.
Can POs be emailed, sent by API or pushed to the supplier portal?
Yes, we build to whichever method your suppliers actually support, email, a direct API connection, EDI, or a supplier portal, and can support more than one if your suppliers differ.
Can it sync with my ERP, accounting and inventory?
Yes. The PO automation syncs with your inventory system to trigger correctly and pushes the resulting purchase order into your ERP or accounting software so records stay current without re-entry.
How do approvals and exceptions get handled?
Approval rules route POs by amount or cost center before they go out. Exceptions, like a price or quantity that doesn't match expectations, get flagged for a person to review instead of going through automatically.
How long does the setup take?
Most single-supplier PO automation builds take 1 to 3 weeks depending on how many SKUs, suppliers, and connected systems are involved.




