# X_TOPIC_FORBIDDEN

## Means

the actor may not subscribe to this topic

## Typical cause

a subscribe named a channel no `channel()` declares on this node, or the declaration's `policy` denied it (latched per socket and topic until the session changes)

## Fix

`x policy list --json`, then widen the policy on the `channel()` declaration this topic belongs to, or subscribe as an actor it allows

[Realtime](/error-codes#realtime)