Merge pull request #6727 from aschmid13/patch-3

Adding context to Trace Observer restrictions

src/content/docs/distributed-tracing/infinite-tracing/set-trace-observer.mdx

@@ -31,7 +31,7 @@ Do some of your requests communicate with services that are still using standard
 To create a new trace observer if you're using New Relic APM agents or third-party integrations:
 
 1. Go to [one.newrelic.com](https://one.newrelic.com) and click **Apps**, and then under **Your apps**, click **New Relic Edge**.
-2. Select an account in the upper-left dropdown. If you have access to multiple accounts, make sure you're in the account where you want Infinite Tracing enabled.
+2. Select an account in the upper-left dropdown. If you have access to multiple accounts, make sure you're in the account where you want Infinite Tracing enabled. Since Tracing is a cross-account feature, the trace observers are limited to one observer per region per [account family](https://docs.newrelic.com/docs/accounts/original-accounts-billing/original-users-roles/parent-child-account-structure/).
 3. If no trace observers are already present, click **New trace observer** to add one, fill out the information, and click **Create**. Note that we offer the following regions:
 
     * **us-east-1 (US)**
@@ -176,7 +176,7 @@ If you already created a trace observer while setting up another type of service
 If you haven't already set up a trace observer, complete the following:
 
 1. Go to [one.newrelic.com](https://one.newrelic.com) and click **Apps**, and then under **Your apps**, click **New Relic Edge**.
-2. Select an account in the upper-left dropdown. If you have access to multiple accounts, make sure you're in the account where you want Infinite Tracing enabled.
+2. Select an account in the upper-left dropdown. If you have access to multiple accounts, make sure you're in the account where you want Infinite Tracing enabled. Since Tracing is a cross-account feature, the trace observers are limited to one observer per region per [account family](https://docs.newrelic.com/docs/accounts/original-accounts-billing/original-users-roles/parent-child-account-structure/).
 3. If no trace observers are already present, click **New trace observer** to add one, fill out the information, and click **Create**. Note that we offer the following regions:
 
     * **us-east-1 (US)**