Software customized to your business and Sage 300.

Describe the app you need. Our AI engineers build it around 100% of your workflow, connect it to Sage 300 and keep it running. Typically ready to test in 1–2 weeks.

Book a demo

No developers needed. Free test version before you commit.

Yes, you can get custom software that connects with Sage 300.

Yes. Mercovano builds custom business software that connects directly to Sage 300 through Sage's REST, OData, SDK API. Our AI engineers design it around how your team works, and it reads and writes Sage 300 data such as vendors, purchase orders, bills.

Sage 300Sage · ERP

Reads and writes

VendorsPurchase ordersBillsItemsSales ordersGeneral ledger

Your appsApprovals · rules · forms

Apps you can build on Sage 300.

Each one is its own app, built around your rules and connected to Sage 300, so nothing is typed twice.

Vendor	Amount	Status
Apex Office Supply	$1,240.00	Manager
Brightline IT	$6,410.50	Finance review
Metro Facilities	$4,980.00	Approved
Summit Freight	$1,275.00	Posted
Northwind Print	$830.25	No PO

Customer	PO	Status
Bayview Foods	PO-88231	Created
Metro Supply	PO-1197	Created
Harbor Grill	PO-5520	Price check
Lakeside Deli	PO-0412	No stock

How it connects to Sage 300.

Vendor: Sage
Category: ERP
Connection: Direct API, no middleman
API type: REST, OData, SDK
Access: We confirm the access steps for your Sage 300 account on your first call.
Real-time updates: No. Your automations check Sage 300 for changes on a schedule.
Writing back to Sage 300: Partial. Key records can be written back; the rest are read.
File import fallback: Yes. Sage 300 accepts import files, which we use as a fallback.

From a description to a working app.

01
Describe the app you need
In your own words: how the work runs today, who approves what, and which systems it touches. Click through a first version and change anything.
02
We build it and connect your systems
Our AI engineers build it on your data. Your admin grants access to your systems, with exact steps from us; we do the rest.
03
Test, launch and improve
Test it free on your own data before you commit; typical apps are ready to test in 1–2 weeks. When your process changes, the app changes with it.

No developers on your side. Just someone who knows how the work gets done.

See how it works in detail →

100% your workflow

Your steps, approvals and policies, not Sage 300's defaults.

Connected to Sage 300

Approved work lands in Sage 300 without anyone re-typing it.

One platform, many apps

Every app shares the same Sage 300 connection, sign-in and roles. Add the next one when you need it.

Sage 300 and Mercovano, answered.

Can I get custom software that connects with Sage 300?

What apps can I build on Sage 300?

Teams build purchase requests, invoice approvals, vendor onboarding, order intake, month-end close and cross-system reporting on Sage 300, each with their own approval rules, forms and policies. If you can describe the process, we can build it.

How does the software connect to Sage 300?

We confirm the access steps for your Sage 300 account on your first call. The connection uses Sage 300's REST, OData, SDK API.

Do I need a developer or IT team?

No. Our AI engineers build, connect, host and maintain your apps. You describe how the work runs today and test it on your own data.

How long does it take?

Typical projects are built and ready to test within 1–2 weeks of going ahead.

How is it priced?

You pay for the software you need, nothing more: no per-user pricing and no implementation fees.