What Information Should You Give a Software Development Company?

A useful first brief is short — what your business does, roughly how big it is, and what specific problem you want the software to solve, in plain language rather than technical requirements. A vendor doesn't need your full business plan; they need enough context to ask the right follow-up questions, which is what a good discovery conversation is actually for.

State the problem, not your assumed solution, where you can — "we lose track of which orders are still pending supplier confirmation" is more useful to a vendor than "we need a dashboard," because the first lets them propose the right fix, while the second locks in a solution before anyone's looked at the actual problem.

Every workflow has a happy path and a set of exceptions, and it's the exceptions that most often get missed in a first brief — what happens when a customer cancels mid-process, when a discount code doesn't apply cleanly, when two staff try to edit the same record. A vendor who only hears the happy path will build software that looks right in a demo and breaks in week one of real use.

Imagine a regional retail chain briefing a vendor on a new loyalty-program platform. The happy path — a customer earns points, redeems them at checkout — is the easy part to describe. The exceptions are what actually determine the build's complexity: what happens to points when an item is returned, how points transfer (or don't) between the chain's different store formats, what happens when a customer's phone number changes and their point history needs to follow them. Naming these upfront, even roughly, saves real rework later.

A vendor needs to see what your real data looks like to design a realistic system and a workable migration — but "real data" doesn't mean live customer records. Anonymised or synthetic sample data that preserves the actual structure, formats and inconsistencies of your real data serves the same purpose without the exposure risk.

List every existing system the new software needs to connect to — accounting software, a payment gateway, an SMS or WhatsApp provider, an existing ERP — along with whatever you know about how each one exposes data (an API, a file export, nothing at all). Integrations discovered mid-build are one of the more common sources of schedule slippage, precisely because they're expensive to retrofit into an architecture that wasn't designed around them.

Vendors can propose a far more realistic scope when they know your actual budget range upfront, rather than guessing and either overshooting or lowballing to win the work. Being direct about a ceiling isn't a negotiating weakness — it's the fastest way to a quote you can actually act on.

State your expectations on code ownership and post-launch support explicitly before work starts, not after: who owns the source code and hosting accounts, and what level of support you expect once the software is live. These terms are far easier to agree cleanly at the start of a relationship than to renegotiate once the vendor is your only source of institutional knowledge about the system.

Give a vendor the narrowest access that lets them do the work — a scoped developer account rather than your master admin login, a staging environment rather than production, read access to a system before write access is actually needed. Most platforms support role-based or time-limited access for exactly this reason, and using it costs you nothing in project speed.

This isn't about distrust of a particular vendor — it's a basic control that protects you regardless of how the relationship goes, and any credible vendor will expect and respect scoped access rather than push for broader credentials than the work requires.