Help diverse groups reach genuine agreement.
Structured techniques for helping stakeholder groups with different interests reach an agreement they will stand behind: surfacing differences, finding common ground and testing support honestly.

Weak consensus gets declared at the end of a meeting: a senior voice proposes, heads nod, and the disagreement goes underground, where it resurfaces later as delay and resistance.
Building durable agreement reverses that. Surface the differences first, then look for the ground people share. Techniques that help include structured rounds where each party states their interests before any option is discussed, single-text negotiation where the group improves one draft together, and gradients of agreement, which replace a yes or no vote with a scale from full support to block. The gradient matters because it lets people register reservations without stopping the work, and it shows the convener where thin support needs shoring up.
Time is part of the method. Groups reach agreement when they trust the process, and trust builds over rounds. Plan for consensus to take more than one session, and treat a fast unanimous yes with suspicion.

These steps outline one consensus session within a longer process. Neutral facilitation matters here more than in most sessions. If you have a stake in the outcome, say so at the start, or bring in someone who does not.
State interests, park positions. Give each party a short uninterrupted slot to explain what they need and why it matters to them. Capture the needs on the wall. Positions, such as "we want option B", can wait.
Find the shared ground. As a group, mark the needs that appear on more than one list. Frame the task ahead as designing an answer that meets the shared needs and as many individual ones as possible.
Build and improve one option. Work on a single draft together. Invite each party to say what would need to change for them to support it, and make the edits live where you can.
Test support honestly. Run a gradients of agreement check, from enthusiastic support through support with reservations to block. Record where everyone stands, note the reservations, and agree what happens next for anything short of full support.
Use Consensus Building Techniques when a decision needs the support of stakeholders who do not naturally agree. Structured approaches surface differences, find common ground and reach an agreement people will stand behind.

Using this tool with a skilled facilitator means that discussions are focused, time is used efficiently, and the group moves toward consensus, making the session productive and impactful.