> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fapost.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> Terms used throughout FaPost, and the pairs that get confused.

## Terms

**Assistant** — one bot, with its own channels, flows and contacts.
[More](/using/assistants)

**Broadcast** — one message sent to a chosen audience at once.
[More](/using/broadcasts)

**Channel** — an assistant's presence on one messaging platform.
[More](/using/channels)

**Contact** — a person who has written to the assistant on a channel.
[More](/using/contacts)

**Conversation** — the whole exchange with one contact on one channel.
[More](/using/conversations)

**Draft** — a flow being worked on, not yet visible to contacts.

**Flow** — a conversation drawn as connected nodes. [More](/using/flows)

**Flow group** — a folder for flows. [More](/using/flow-groups)

**Group** — a hand-maintained list of contacts.
[More](/using/contact-groups)

**Handle** — the outcome a node reports, which decides which connection is
followed.

**Node** — one step in a flow: send, ask, branch, call.

**Published version** — the version of a flow contacts are currently getting.
[More](/using/publishing)

**Reach** — how many contacts a broadcast could actually be delivered to, which
is not the same as the size of its audience. [More](/using/broadcasts)

**Role** — a named set of permissions. A user has exactly one.
[More](/using/roles-and-permissions)

**Segment** — a saved condition over contacts, evaluated rather than listed.
[More](/using/segments)

**Session** — one contact's single pass through one flow.
[More](/using/sessions)

**Tenant** — one organisation's installation. On a self-hosted install, the only
one.

**Trigger** — what starts a flow: a keyword, an event, or being the default.

**Webhook hash** — the secret part of the URL a provider delivers to. Identifies
a channel. [More](/using/channels)

## Pairs that get confused

**Conversation and session.** The conversation is the whole relationship; the
session is one journey through one flow inside it. A conversation can hold many
sessions or none.

**Group and segment.** A group is a list somebody maintains. A segment is a
condition the platform evaluates. Membership of one is a decision; of the other,
a property.

**Flow groups and contact groups.** Two screens named *Groups*, in different
sections of the console sidebar, holding entirely different things.

**Active and published.** A flow can be active but never published — ready to
run, with no live version to run. Both columns appear on the flows list.

**Audience and reach.** The audience is who a broadcast targets; the reach is how
many of them can actually receive it.

**Tenant settings and assistant settings.** Languages and runtime limits are
tenant-wide; default language, served countries and fallback messages belong to
one assistant. Changing the wrong one is the usual reason nothing happens.