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If you're using the current version of our Cocoa SDK, distributed tracing will work out of the box.

If you're using version 8.10.x or below, you'll need to have our Network Tracking feature enabled in order for distributed tracing to work.

Strict Trace Continuation

When your application communicates with backend services, the responses might include sentry-trace and baggage headers from an upstream service that is also using Sentry. By default, the SDK will continue the trace from these incoming headers. However, this behavior can be undesirable if the responses are from a third-party service, as it can lead to unwanted traces, increased billing, and skewed performance data.

To prevent this, you can enable strictTraceContinuation. When this option is set to true, the SDK checks incoming trace information and only continues the trace if it belongs to the same Sentry organization. Otherwise, it starts a new trace.

SentrySDK.start { options in
    options.dsn = "___PUBLIC_DSN___"
    options.tracesSampleRate = 1.0
    // Ensure that only traces from your own organization are continued
    options.strictTraceContinuation = true
}

The SDK automatically parses the organization ID from your DSN. If you use a DSN format that doesn't include the organization ID (number followed by the letter "o"), or if you need to override it, you can provide it manually using the orgId option:

SentrySDK.start { options in
    options.dsn = "___PUBLIC_DSN___"
    options.tracesSampleRate = 1.0
    options.strictTraceContinuation = true
    // Manually provide your organization ID (overrides organization ID parsed from DSN)
    options.orgId = "12345"
}