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Practicalities

What being locked in to an AI supplier looks like

Lock in is not a clause in a contract, it is the day you work out that leaving would cost more than staying. It arrives in four forms: the supplier holds the accounts, you do not own what was built, your data will not come out in a usable state, or nobody in your business understands how the work is done. Each one is cheap to prevent at the start and expensive to unwind later.

Last checked 20 September 2026

The four kinds #

  • Account

    The subscriptions and logins are in the supplier’s name, not yours. The early warning is that you were never asked for a company card, and nobody discussed who owns the account.

  • Ownership

    What was built for you is not yours, or exists only where you cannot reach it. The early warning is that nothing in the proposal says who owns the work at the end.

  • Data

    Your records are inside something you cannot export in a usable form. The early warning is that nobody can tell you what an export looks like, because nobody has done one.

  • Knowledge

    Only the supplier knows how the work happens now. The early warning is that there is no written description of the process, and the old one was deleted.

Account lock in, the one that costs nothing to prevent #

This is the most common and the most easily avoided. During a project somebody has to sign up for things, and it is quicker if the supplier does it. A year later, every service the business depends on is in someone else's name, billed to someone else's card, recoverable only with their cooperation.

The prevention is one sentence at the start: accounts in the business name, business card, business email, supplier invited in as a user who can be removed. It is an afternoon of administration at the beginning and close to impossible to reverse cleanly once the accounts have history attached to them.

Ownership lock in #

Under UK law the default position for commissioned work is not what most businesses assume, and the assumption is the whole problem. This has its own page, because it deserves the detail: who owns what gets built.

The practical face of it is narrower than the legal one. Even where ownership is agreed in writing, owning something you have never been given a copy of is not much use. Ask where the work lives, and ask to be sent it, once, early, while everybody is still friendly.

Data lock in, and why the law will not save you #

Businesses reach for data protection law here and find it does not do what they hoped. The right to data portability belongs to individuals, not to organisations.

What the portability right actually covers

The ICO describes it as the right of an individual to receive personal data they have provided to a controller, and it does not extend to additional data created from what they provided. It applies only where the lawful basis is consent or performance of a contract, and only where processing is by automated means.

So a business trying to get its own operational records out of a supplier is not exercising a right. It is relying on whatever the contract says, and on whether an export function exists.

There is one place the law does bite in your favour. Where a supplier is processing personal data on your behalf, the ICO lists deletion or return of that data at the end of the contract among the minimum terms the contract has to contain.

That is worth knowing and it is narrower than it sounds: it covers the personal data, not the working of the thing that was built, and not the accumulated outputs. The detail is in what a data processing agreement is for.

The question that settles it is practical rather than legal: ask for an export now. Not a description of one, an actual file. A supplier who produces it in a day has answered the question permanently. One who explains why it is complicated has also answered it.

Knowledge lock in, the quiet one #

This is the kind nobody puts in a contract and the kind that most often traps a business. Eighteen months after a project, nobody inside the company can explain how the work now happens. The person who used to do it by hand has left or has forgotten. There is no written process, because the process is the automation.

At that point the supplier does not need to hold your accounts or your data to be difficult to replace. They hold the understanding.

Two habits prevent it.

  • Keep a plain English description of what the automation does

    In terms a new member of staff could follow, and update it when the work changes.

  • Do not delete the manual process the week it stops being used

    Knowing how the job was done by hand is what lets you carry on when something underneath changes, which it will, for the reasons in when the tools change underneath you.

The commercial version of all four #

Worth naming, because it is where lock in usually gets noticed. Prices change, and a supplier who knows you cannot realistically leave is in a different negotiation from one who knows you can. Nothing improper has to happen for this to bite; it is simply what dependence does to a conversation.

Which is why the right time to sort all of this out is while the supplier is still selling to you. Every one of these is a cheap conversation before a contract and an expensive one afterwards.

The five minute version #

  • Accounts in your name, supplier invited in
  • Ownership of anything built for you, written down
  • An export you have actually seen, not one you have been promised
  • A plain English description of how the work happens, kept current
  • A written answer to what stops working on the day you leave

Take those five into any supplier conversation, including ours. The wider list is in questions to ask an AI supplier, and how they fit into judging a whole proposal is in how much AI automation costs.

Questions people ask

What does being locked in to an AI supplier actually mean?
That leaving would cost you more than staying, whatever the contract says. It comes in four forms: the supplier holds the accounts, you do not own what was built, you cannot get your data out in a usable state, or nobody but them understands how the work is done. Any one of them is enough.
Does data protection law give me a right to get my data back?
Not in the way people assume. The right to data portability belongs to individuals, not to businesses, covers personal data the individual provided, and only applies where the lawful basis is consent or contract. A business getting its own operational data out of a supplier is a contract question, not a rights question.
What is the cheapest thing I can do to prevent it?
Buy the accounts yourself. Every subscription and connected service in the business name, with the supplier invited in as a user you can remove. It costs nothing at the start and it is the single change that turns leaving from a rebuild into an administrative task.
Is some lock in unavoidable?
Yes, and pretending otherwise leads to bad decisions. Anything genuinely useful creates dependence, the same way an accounting package or a phone system does. The goal is not zero dependence, it is knowing exactly what it would cost to leave and deciding that price is acceptable before you are paying it.

Where these numbers come from

  1. ICO, Right to data portability , read 20 September 2026 . The right belongs to individuals, covers personal data they provided to a controller, excludes data created from it, and applies only where the lawful basis is consent or performance of a contract and processing is by automated means.
  2. ICO, Contracts and liabilities between controllers and processors , read 20 September 2026 . Lists deletion or return of personal data at the end of the contract among the minimum terms a controller to processor contract must contain.

Last checked 20 September 2026.

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