This article explains how to set up cross-account logical replication for Amazon Aurora PostgreSQL using Aurora clones and PostgreSQL's native logical replication capabilities.

• Enable near real-time database synchronization across different AWS accounts in same region
• Use aurora_volume_logical_start_lsn() function to determine correct replication starting point
• Supports selective replication at database, schema, or table level
• Requires Aurora PostgreSQL 11.15+, 12.10+, 13.6+, 14.3+, or 15.2+ versions
• Configure WAL parameters: wal_level, max_replication_slots, max_wal_senders, max_worker_processes
• All replicated tables must have primary keys
• Use cases: dev/test environments, data analysis, auditing, compliance reporting
• Includes detailed 10-step implementation walkthrough with SQL commands
• Monitor replication using pg_replication_slots queries and CloudWatch metrics

This solution enables organizations to maintain synchronized database copies across AWS accounts for development, analytics, and compliance purposes without impacting production performance.