1Replacing a working system is rarely the cheapest option
If the business logic in your existing system is correct and people know how to use it, adding a compliant output layer is usually faster and cheaper than migration.
Some businesses run something that works and that no vendor will ever build a connector for — an old ERP, an in-house system, a trading platform with its own logic. That is a normal situation and it is solvable, usually for less than replacing the system.
Four things worth understanding properly before you spend money on anything.
If the business logic in your existing system is correct and people know how to use it, adding a compliant output layer is usually faster and cheaper than migration.
Which of your fields feeds which schema field, what happens when one is missing, and where a rejection surfaces. That is the bulk of an integration project.
Building the connection as a distinct layer rather than deep inside your ERP means changing provider later does not mean rebuilding your ERP.
Everyone tests with a clean single-line invoice. Test with the multi-currency, part-shipped, partially credited one, because that is the one that breaks.
Seven things that turn a vague worry into a manageable task list.
Short, practical answers. If yours is not here, ask us directly — we answer even if you never become a client.
That is a large part of what we do. We look at what your system can already produce and build the mapping and transport layer around it.
It depends on how accessible your current system's data is. Weeks where there is a decent API, longer where we are working around an older system.
Less risky than a full migration in most cases, because you keep the business logic your team already trusts.
Most businesses will need something sitting between their sales desk and their Accredited Service Provider — a system that creates a proper structured invoice, holds the customer data the standard demands, and keeps a record an auditor will accept. That is what we build, and because we build it ourselves we can shape it around your business rather than asking you to reshape your business around a product.
GoldenKey is a business setup and compliance consultancy. We are not a Ministry of Finance Accredited Service Provider, and we do not claim to be one. Our software is built to work alongside the ASP you appoint. Scope, timelines and pricing are agreed in writing before any work starts.
Tell us your revenue band and how you invoice today. We come back with your phase, your dates and a plain list of what you need.
No cost, no obligation. We tell you which phase you fall into and what you actually need.
GoldenKey covers every step — start, run, grow — under one golden roof: