Understanding the difference between Lists and Sequences

The goal of this article is to help you understand the difference between two new key pages in the Topo platform: Lists and Sequences.

Why the change?

In the previous version of Topo, everything lived inside a single campaign. You prompted the agent, got a list of contacts, validated them, and the platform contacted them — all in one place.

That workflow bundled two activities that, for most SDRs, are actually separate motions: building your target list and running your outreach sequence. The new Topo interface separates them, giving you independent control over each.

What is a List?

A list is a set of contacts you build through the AI agent. When creating a list, you can:

1. Prompt the agent with your targeting criteria (industry, role, company size, geography, etc.)

2. Review the sample results the agent returns in real time.

3. Refine your search if needed — adjust filters, tweak the prompt, add AI criteria.

4. When you're happy with the results, save the list.

Once saved, a list is a standalone asset. You can keep it as-is, or enrol it into a sequence whenever you want to launch outreach.

What is a Sequence?

A sequence is where you define how contacts get reached. This is where you set up (not limited to):

• Messaging — the copy for each touchpoint

• Structure — the number of steps and the channel mix

• Schedule — timing and delays between steps

• Sender identity — which team member sends the messages

A sequence doesn't contain contacts by itself. Instead, you assign one or more lists to it.

Coming from the old Campaigns workflow?

The core actions haven't changed — you're still prompting an agent and sending outreach. The difference is that you now control each step independently instead of doing everything inside a single campaign. If you were used to creating a campaign and working through it linearly, the closest equivalent is: create a list first, then create a sequence, then assign the list to the sequence.