Purchasing & Stock

The purchase & inventory system for the installation sector
With OpusFlow automated Purchasing & Stock module, you don’t have to update stock manually anymore when a new order is placed.

Why opusflow

Benefits for your company

OpusFlow’s Purchasing & Stock module gives your business a single, reliable picture of everything that moves in and out, from the moment a project is confirmed to the day the job is done.
Keep track of your inventory
Manage multi-warehouse stock, expected levels, and reserved items easily with OpusFlow.
Manage purchasing​
One setup, multiple suppliers. OpusFlow auto-splits and sends your purchase orders.
Future stock reserve
Reserve stock based on your bill of materials. Ensure everything is ready for install day.
Stock dashboard
Get instant stock insights. OpusFlow ensures full visibility of current and due items.

SOUND FAMILIAR?

The right materials in the wrong place.

Most installation companies don’t lose margin on the job itself. They lose it before anyone picks up a tool – wrong stock reserved, a PO typed out by hand, a panel that was already allocated to another project. When purchasing and stock live in spreadsheets and gut feel, install day becomes a gamble.

Your solutions

You find out materials are missing when the van is already on the road.

By the time your team is on-site and the stock isn’t there, the damage is done. A wasted journey, a delayed installation, a customer waiting.

You’ve got the full bill of materials ready. Now someone has to manually copy everything into a purchase order. It takes an hour, it’s error-prone, and it has to happen for every single project.

The planner books the install date. Procurement orders the hardware. Neither system tells the other what’s happening.

Shelf status. Always known.

The moment a project is confirmed, stock gets reserved automatically.

One click. Full order.

Once your bill of materials is finalised, you can convert it directly into a purchase order.

Always aligned. Same page.

When stock is reserved against a project and backorder dates feed directly into the schedule, your planner and your procurement team are always looking at the same data.

The right materials in the wrong place.

Most installation companies don’t lose margin on the job itself. They lose it before anyone picks up a tool – wrong stock reserved, a PO typed out by hand, a panel that was already allocated to another project. When purchasing and stock live in spreadsheets and gut feel, install day becomes a gamble.

By the time your team is on-site and the stock isn’t there, the damage is done. A wasted journey, a delayed installation, a customer waiting.

Shelf status. Always known.

The moment a project is confirmed, stock gets reserved automatically.

You’ve got the full bill of materials ready. Now someone has to manually copy everything into a purchase order. It takes an hour, it’s error-prone, and it has to happen for every single project.

One click. Full order.

Once your bill of materials is finalised, you can convert it directly into a purchase order.

The planner books the install date. Procurement orders the hardware. Neither system tells the other what’s happening.

Always aligned. Same page.

When stock is reserved against a project and backorder dates feed directly into the schedule, your planner and your procurement team are always looking at the same data.

Join over 3.000 installers using OpusFlow

Three-way matching: Your invoices check themselves.

When a supplier invoice comes in, it gets automatically matched against the original purchase order and the warehouse receipt. If something doesn’t add up, you know straight away – before anything gets approved or paid.

PO from supplier | OpusFlow

Works with the tools your business already runs on

OpusFlow connects natively with Google Workspace, Microsoft 365, Exact, Mollie, and more, so your team hits the ground running, not starting over.

Keep a full overview of your stock

OpusFlow provides insight into current, expected, and required stock at all times with dynamic dashboards. This makes it easy to monitor stock and ensures that you as an organization can work efficiently.

Stock overview | OpusFlow

The right stock. The right place.

OpusFlow customers don't just get better control over their stock and purchasing, they protect their margins and keep their projects moving. See what that looks like in practice.

e-WNDR
"With OpusFlow, we can now make different automations, streamline processes, and have the flexibility to change processes within the business."

Ace Noppen - Marketing manager

Set a threshold. Never run out.

Define a minimum stock level for any product and the system flags it automatically when you’re getting close. No more discovering shortages when it’s too late to act – you get the signal while there’s still time to order.

FAQ

Everything you want to know before booking a demo.

Can purchase orders be generated automatically from a Bill of Materials?

Yes. Once a BOM is finalised, OpusFlow converts it into a formal purchase order in a single action, pulling through all line items, SKUs, and quantities automatically. You can select hardware directly from your pre-integrated supplier catalogs with agreed pricing already applied, so there is no manual transcription between the BOM and the PO, and no risk of ordering the wrong quantities or the wrong product.

Does planning also take the available stock into account?

Yes! The planning module is linked to your stock, so you can reserve inventory for upcoming projects and always know exactly what is coming in and going out.

What is three-way matching and does OpusFlow support it?

Three-way matching is the process of validating a purchase order against the warehouse goods receipt and the supplier invoice to confirm they all align before payment is approved. OpusFlow handles this automatically, flagging any discrepancies between what was ordered, what arrived, and what the supplier is billing. It removes a significant source of invoice errors and gives your finance team a clean, auditable trail for every purchase.

Can we track stock across multiple warehouses and vehicles?

Yes. OpusFlow monitors stock levels across your primary warehouses, service vehicles, and any forward staging locations in real time. Every movement — inbound receipt, outbound deployment, or internal transfer between locations — is recorded in an immutable timestamped log. Items can be tracked by barcode, supplier SKU, or your own internal identifier, so you always know exactly where each product is across your entire operation.

What happens if a product is on backorder and it affects an upcoming installation?

OpusFlow tracks backorder status at the order line level and feeds the expected delivery date directly into project scheduling. That means a delay from a supplier surfaces in the planning view before it becomes an install-day problem, giving your team time to source an alternative or reschedule rather than discovering the shortage on the morning of the job.

Can we import products from supplier catalogs directly into OpusFlow?

Yes, through two routes. The 2BA integration gives you access to over a million supplier products — search, compare pricing, and link results directly to your stock articles, with a bulk sync option to keep pricing up to date across all articles from a given supplier. The ENF integration covers solar panels, batteries, and inverters specifically, auto-populating product specifications on import so you can add new hardware to your catalogue and set your own pricing without any manual spec entry.

How does stock reservation work in OpusFlow?

When a project is confirmed, OpusFlow reserves the required stock against that project automatically, based on the Bill of Materials. The reservation is hard — meaning those items cannot be allocated to another project, eliminating the double-allocation problem that causes install-day shortages. Stock levels across your warehouses, vehicles, and staging locations all update in real time so you always have an accurate picture of what is actually available.

Still have questions?

Our team knows the product inside out. Ask us anything — no sales pressure, no scripts.

Schedule your free demo

Get a live customized demo focused on what your organization needs, get answers to your specific questions, and find out why OpusFlow is the right choice for your organization

What can I expect?

"By using OpusFlow, we were able to centralise our processes and massively increase efficiency. Our cost-per-quote ratio has certainly decreased by 50% as a result."
Patrick Salmon – Sales Manager, AMPERA Solar- & Energiesysteme
AMPERA

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