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DIY: Build Your Own Agent for AI Negotiation

Self-serve AI negotiation is having a moment. It sounds appealing because it promises speed, scale and less dependency on procurement bottlenecks. While it is not a universal solution, it’s great in some scenarios.

Drag-Drop-Negotiate

We see a self-serve negotiation model is one where a human in the business initiates the negotiation themselves. They drag in whatever they are working with and launch the conversation without procurement being involved at that moment. Procurement’s role sits earlier in the workflow: defining what is allowed, what is required, and where the boundaries are for any negotiation.

This model works best where procurement already knows negotiations are happening without them or negotiations should be happening whiteout them but in reality business units are just accepting the first price offered. Large corporations try to impose rules on the business unit, using process requirements like three bids and a buy or imposing spending limits above which approvals must be sought. But what if EVERYTHING could be easily negotiated 1-1 or 1-to-many?

In many organisations, business units are already negotiating directly with suppliers. They are doing it over email, in spreadsheets, on P-cards, and through informal RFQs. Procurement does not lack authority in these cases. It lacks coverage and visibility.

Self-serve negotiation brings those conversations into a governed environment without forcing every interaction through a central team.

Where this model works best

In practice, self-serve negotiation works in mid-to-large organisations with decentralised buying. Typically this is £200m+ revenue businesses with multiple business units, hundreds of suppliers, and a long tail of low-to-mid value purchases that procurement cannot practically touch one by one.

The common thread is not the category, but the buying pattern. The negotiation itself needs to be repeatable, even if the suppliers are not.

It works particularly well for simple service contract renewals where scope is stable and negotiations are largely about price, rates or payment terms. These contracts often roll over unchanged because negotiating them individually takes too much time.

It also fits RFQs run against rate cards or standard pricing. Day rates, hourly rates, fixed service menus and volume-based pricing all fall into this bucket. The commercial logic is already understood and can be applied consistently.

The same is true for commoditised or benchmarked purchases where there are multiple interchangeable suppliers and a clear sense of what “good” looks like. Logistics lanes, temporary labour, standard components and repeatable engineering services are common examples.

If a human buyer can run the same negotiation playbook fifty times with minor variation, a self-serve system can usually do the same.

Using AI negotiation to enforce standard terms

One under-appreciated benefit of this model is that negotiation becomes a way of enforcing standardisation.

Self-serve negotiations can be designed so that suppliers are required to accept standard legal terms, payment terms and e-signature as part of the process. Exceptions are visible rather than buried in email threads. Compliance is designed in, rather than chased afterwards.

For procurement teams dealing with large numbers of small suppliers, this can be as valuable as any price improvement.

Self-serve AI Negotiation works because it starts from reality

For self-serve negotiation to be viable, it has to start from the materials people actually have.

In practice that means being able to drag in:

  • an email from a supplier
  • a quotation in PDF
  • an Excel spreadsheet with prices and terms

Anyone who works in procurement will recognise that last one. Many of us spend an inordinate amount of time filling in supplier spreadsheets just to get an RFQ moving. I know, – we have been doing exactly this from Nibble all through December for two different RFQs.

A system that requires clean, structured data before a negotiation can begin will not scale in these environments. A system that can extract what matters from messy inputs can.

That capability exists today. Drag, drop, negotiate.

This matters because adoption depends on speed. If launching a negotiation requires reformatting data, filling in templates or duplicating work, people will default to email again.

Why procurement teams tend to like self-serve AI Negotiation once they see it

At first glance, self-serve negotiation can feel like giving control away. In reality, it gives procurement control over something that is currently uncontrolled.

Negotiations are already happening. The difference is that today they leave no usable data behind.

Self-serve negotiation captures information most procurement teams simply do not have at scale: how suppliers respond, where concessions are made, which terms matter, and how often price increases are accepted without challenge. Strategic suppliers are usually well understood. The long tail is not.

For teams still managing this activity in spreadsheets, this shift can be significant. It replaces manual tracking with structured data, without forcing a heavyweight system rollout.

Getting started with AI Negotiation does not require deep integration

This model also works because it does not depend on full ERP or P2P integration from day one.

Organisations can start with a standalone tool, observe where adoption naturally occurs, and then decide which integrations are worth building. Integration follows usage, not the other way around.

That sequencing reduces risk and makes it easier to justify further investment.

A final boundary

Self-serve negotiation is not suitable for strategic suppliers, highly bespoke contracts or relationship-led negotiations. It is not trying to replace senior procurement expertise.

It is designed to cover what currently sits outside that expertise simply because there is not enough time or resource to engage.

Used in the right places, it saves time, brings consistency, and creates visibility where none existed before. Used in the wrong places, it will frustrate everyone involved!

Just One More Thing

Over the last week or so, here at Nibble HQ we have been planning events for this year, this is our personal pick of the bunch for H1 2026, in case its helpful for your planning. Let me know if you are going as I would love to get out of the Linkedin bubble and say hello IRL:

February: Nibble‘s own virtual roundtable on ROI with Janet Lung Standing (senior procurement professionals only, DM me if you would like to join us)

March: AI Agents event in NewYork from KonnectHouse – Procurement insights (I went to the London one last year which was brilliant, smaller group, roundtables, real conversations)

May: World Procurement Congress in London (the most senior and largest gathering of procurement people, in the world! I am told)

June: DPW in New York (Innovation and digital transformation focus – it was a great vibe last year so I can’t wait for this one)

Interested in Nibble’s AI Negotiation?  

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