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We do B2B, from 1 to 888888 users

We provide SAP Business One consulting, development, support and implementations.

SAP B1 is propably the best ERP software package for growing organisations and every serious startup.

We will be happy to provide, implement and support SAP Business One as the organisational template for your business.

We provide low cost upgrade options for installations with their official SAP support deadline past due.

We can reverse-engineer an existing system and your old SAP B1 Add-Ons and upgrade it all to proper MVC code which will pass the test of major SAP system upgrades, even if you do not happen to have the original source code.

We know how and we consistently follow written and unwritten guidelines for SAP SDK DI and UI connectors while connecting your SAP B1 installation to any external system.

We can replace your XL Reporter and the likes with SQL + VBA + ODBC + Excel + Superset engine to give you control over your reporting platform from end to end and with stable roadmap facing forward.

No job too big

We are open for business globally. We build bespoke software for Apple, Microsoft and SAP Business One platforms, including iOS, macOS, Windows, .NET, DI and UI SAP Add-Ons.

We are ready to meet your reasonable timescales while building OEM software for your brand.

We specialise in translating and upgrading old, broken code bases to modern Objective-C, Swift or VB.NET.

No job too small

We consult and provide full scope IT support for successful local business and posh residents in Chobham, Ottershaw, West End, Bisley, Knaphill, Woking, Weybridge and surrounding areas within 1.5h drive.

We specialise in leaving no unhappy customer behind.

We are friendly and helpful, try us out, please and thank you! :-)

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We love what we do which together with Simplicity is the key to happiness.

Happiness is a state in which there are no problems.

Science and technology enrich this state with delightfully sustainable complications.

We do not do evil*, as defined by Ultimate Law which is our charity of choice.

Our guiding principle is to satisfy the customer through early and continuous delivery of valuable software.

We believe that working software is the primary measure of progress. We aim to deliver working software frequently, from a couple of weeks to a couple of months, with a preference for ASAP.

We accept changing requirements, even late in project lifecycle.

We use effective methods to harness change for the customer's advantage. The required behaviour of the final executable program is specified as an abstract which is then refined by a series of correctness-preserving transformations into the final product.

We value:

Working Software over Comprehensive Documentation

Responding to Change over Following a Plan

When working with people, we prioritise:

Customer Collaboration over Contract Negotiation

Individuals and Interactions over Processes and Tools

That is, while there is value in the items on the right, we value the items on the left more :)

We love what we do so we practice what we say, every day.

SAP Business One but a shadow of Citrus of Colors

The starter package for the SAP® Business One application is an integrated business management solution for even the smallest of small companies who have the biggest of big ambitions.

Probably the best at it, too.

Running either on premise or in the cloud, SAP B1 ERP/CRM system is the tool to manage fundamental business requirements with finance accounting, sales, purchasing, customer relationship management, inventory, logistics, production planning, services and project management functionality - all working together beautifully in one integrated, coherent business management platform.

SAP Business One is the best ERP platform for ambitious startups because it scales beautifully from 1 to tens of thousands of users. It is open to infinity of modifications via exemplary MVC APIs beloved by the sharpest developers yet mainaineable by any honest software technician. It opens your data to the power of direct SQL access in a professional and very safe manner, enabling superior reporting solutions tailored for your business model but performant on cost efficient hardware, too. In many aspects SAP B1 significantly surpasses its bigger brother which otherwise runs most of the Fortune 500 companies.

It is possible to gain continuous visibility and control while building a stable software foundation to support your evolving business needs, from less than £1000 + VAT per initial in-house demo installation*

* Perpetual Starter User License with core functionality included. Terms and Conditions apply.

On top of any bespoke custom work with SAP B1 you could possibly imagine, we offer standardised optional services* and software off the shelf:

* PRINCE2 project management included. T&Cs apply.


Bespoke bi-directional SAP B1 integration with Shopify, Magento, Shopware, osCommerce or any other Ecommerce platform with integrated 3rd-Party Logistics Warehouse Management System module and optional Boyum IT B1Up UX enhancements, from £12500 + VAT.

SAP B1 recovery UPGRADE service

SAP Business One system upgrade from any to any major SAP B1 version. We can help you recover active SAP support for your system regardless of its current state, even if you lost documentation and source code of your SAP SDK UI or DI Add-Ons, from £2500 + VAT.


Disaster Recovery Intercompany solution based on standard operating system scheduler and standard implementation quality SAP tools such as DTW, avoiding typical vendor lock. With optional Boyum IT B1Up UX enhancements and SQL data cube reporting, from £2500 + VAT.

Superset DATA CUBE

SQL data cube reporting solution based on leading open source database and tools, avoiding typical vendor lock. With optional Boyum IT B1Up UX enhancements and integrated on-site hardware inclusive of maintenance, from £7500 + VAT.

MTD for SAP B1

Native Making Tax Digital 2019+ solution for SAP B1, with option for pre-9.3 PL08 versions, from £3500 + VAT.

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We offer hands-on diaster recovery and emergency Interim CTO services or Systems Architect services on time and materials basis.

We can direct and steer your organisation through the murky waters of AI revolution to achieve sustainable security, resilience and plan for continuous improvement of your IT systems in approximately 88 days over a year.

Terms and Conditions

We contract for minimum 5 days over a month at

£900 + VAT per day of remote services or
£1200 + VAT per day on-site.

We can guarantee from 5 to 25 days over a month availability for agreed periods of year.

We do not observe weekends religiously because we do not consider what we do to be real work. We are having fun helping people understand computers but we have to charge for our time away from family. This means we do not charge extra for services provided on Friday, Saturday and Sunday.

We embrace reduced risk when working with computer systems outside of their normal working hours. We do not charge extra for remote work provided outside standard office hours, considered to be 9am-5pm with 1h lunch break.

Source code of computer executables which we write for you belongs to you. We reserve full copyrights for ourselves unless agreed otherwise.

For substantial out-of-scope work scheduled for future we reserve an option to charge agreed percentage of the total value of the project up front.

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The best outputs emerge from well resourced teams which are free to self-organize. We build projects around motivated individuals, give them environment and tools they need and trust them to get the job done. Our methods make sustainable development possible. The sponsors, developers and users should be able to maintain constant pace indefinitely.


We signed partnerships and we cooperate with some of the best of the best in IT world.

In order of appearance:

Microsoft for stable and pleasant enterprise-friendly software and cloud platform

Apple for fun

SAP for responsible and powerful ERP and CRM business platform

Boyum IT for common sense SAP B1 UX enhancements loved by DIYers

Shopify for quick and easy short-term but highly scalable e-commerce platform

IBM for Artificial Intelligence

TechData for enterprise hardware

ASUS for stable and pleasant hardware platform

AWS for competitive cloud platform

SUSE for competitive Linux services

TeamViewer for robust and trusted remote support platform


This is but a tip of the iceberg:

Proper Code Ltd
SAP B1Up Dashboards
RDP Gateway
Cloud Storage
Superset BI Superset Demo
BI PostgreSQL Admin Console
Access Dashboard
Windows Admin Center
SAP B1 10.0 PL01
GitLab DevOps
Azure DevOps
Azure Sharepoint

Friends and Supporters

Farbiszewski Family Company
Ultimate Law Charity
A Billion Dollars
iMtG for Magic The Gathering
Chattyhome Blog
Chattyhome 2.0 Dashboard


Phone: +44 (0) 1276 856 032

VAT registration number: GB180596387

Company number: 08842203

DUNS number: 219832856

Proper Code Ltd

12 Delta Close

GU24 8QH

Chobham, Woking, Surrey

United Kingdom

* by appointment ONLY.