# X_REPLICATION_FAILED

## Means

the replication connection was refused

## Typical cause

`wal_level` not `logical`, a role that may not create or extend the publication (the replicator ensures it at boot), a role without `REPLICATION`, a slot another replicator holds, wrong credentials

## Fix

the message names the object; the fix is the exact setting, `CREATE PUBLICATION` or `pg_drop_replication_slot` statement — and a `REPLICATION` grant only on a cluster dedicated to the app ([why](https://github.com/developerz-ai/ultimate/blob/main/docs/ops/01-kubernetes.md#replication-is-a-cluster-wide-grant))

[Realtime](/error-codes#realtime)