Monitoring spans across accounts

Spans sent to X-Ray are ingested and managed in a log group called aws/spans. To monitor spans across multiple accounts, you must enable Transaction Search across all source and monitoring accounts and enable cross-account observability for logs and traces. When you enable cross-account observability, you can search up to 10,000 accounts and get visibility into traces across accounts. This feature is provided at no extra cost for the aws/spans log group. If you enable cross-account observability for trace summaries, the first trace summary copy is free. For more information about pricing, see Amazon CloudWatch Pricing.