[apm] Update APM section information architecture

docs/en/apm-server/redirects.asciidoc

@@ -35,7 +35,7 @@ The error endpoint has been deprecated. Please see {observability-guide}/apm-api
 [role="exclude",id="error-schema-definition"]
 === Error schema definition
 
-The error schema has moved. Please see {observability-guide}/apm-api-error.html[Error Schema].
+The error schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="error-api-examples"]
 === Error API examples
@@ -45,42 +45,42 @@ The error API examples have moved. Please see {observability-guide}/apm-api-even
 [role="exclude",id="error-payload-schema"]
 === Error payload schema
 
-The error schema has moved. Please see {observability-guide}/apm-api-error.html[Error Schema].
+The error schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="error-service-schema"]
 === Error service schema
 
-The error schema has moved. Please see {observability-guide}/apm-api-error.html[Error Schema].
+The error schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="error-system-schema"]
 === Error system schema
 
-The error schema has moved. Please see {observability-guide}/apm-api-error.html[Error Schema].
+The error schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="error-context-schema"]
 === Error context schema
 
-The error schema has moved. Please see {observability-guide}/apm-api-error.html[Error Schema].
+The error schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="error-stacktraceframe-schema"]
 === Error stack trace frame schema
 
-The error schema has moved. Please see {observability-guide}/apm-api-error.html[Error Schema].
+The error schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="payload-with-error"]
 === Payload with error
 
-This is no longer helpful. Please see {observability-guide}/apm-api-error.html[Error Schema].
+This is no longer helpful. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="payload-with-minimal-exception"]
 === Payload with minimal exception
 
-This is no longer helpful. Please see {observability-guide}/apm-api-error.html[Error Schema].
+This is no longer helpful. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 [role="exclude",id="payload-with-minimal-log"]
 === Payload with minimal log
 
-This is no longer helpful. Please see {observability-guide}/apm-api-error.html[Error Schema].
+This is no longer helpful. Please see {observability-guide}/apm-api-events.html#apm-api-error[Error Schema].
 
 // Transaction API
 
@@ -92,7 +92,7 @@ The transaction endpoint has been deprecated. Please see {observability-guide}/a
 [role="exclude",id="transaction-schema-definition"]
 === Transaction schema definition
 
-The transaction schema has moved. Please see {observability-guide}/apm-api-transaction.html#apm-api-transaction-schema[Transaction Schema].
+The transaction schema has moved. Please see {observability-guide}/apm-api-events.html#apm-api-transaction-schema[Transaction Schema].
 
 [role="exclude",id="transaction-api-examples"]
 === Transaction API examples
@@ -102,62 +102,62 @@ The transaction API examples have moved. Please see {observability-guide}/apm-ap
 [role="exclude",id="transaction-span-schema"]
 === Transaction span schema
 
-This schema has changed. Please see {observability-guide}/apm-api-span.html[Spans].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-span[Spans].
 
 [role="exclude",id="transaction-payload-schema"]
 === Transaction payload schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="transaction-service-schema"]
 === Transaction service schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="transaction-system-schema"]
 === Transaction system schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="transaction-context-schema"]
 === Transaction context schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="transaction-stacktraceframe-schema"]
 === Transaction stack trace frame schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="transaction-request-schema"]
 === Transaction request schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="transaction-user-schema"]
 === Transaction user schema
 
-This schema has changed. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This schema has changed. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="payload-with-transactions"]
 === Payload with transactions
 
-This is no longer helpful. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This is no longer helpful. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="payload-with-minimal-transaction"]
 === Payload with minimal transaction
 
-This is no longer helpful. Please see {observability-guide}/apm-api-transaction.html[Transactions].
+This is no longer helpful. Please see {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="payload-with-minimal-span"]
 === Payload with minimal span
 
-This is no longer helpful. Please see {observability-guide}/apm-api-span.html[Spans].
+This is no longer helpful. Please see {observability-guide}/apm-api-events.html#apm-api-span[Spans].
 
 [role="exclude",id="example-intakev2-events"]
 === Example Request Body
 
-Refer to {observability-guide}/apm-api-event-example.html[Example request body].
+Refer to {observability-guide}/apm-api-events.html#apm-api-event-example[Example request body].
 
 // V1 intake API
 
@@ -449,42 +449,42 @@ Refer to {observability-guide}/_apm_server_binary.html[APM Server binary].
 
 {move-notice}
 
-Refer to {observability-guide}/apm-installing.html[Step 1: Install].
+Refer to {observability-guide}/_apm_server_binary.html#apm-installing[Step 1: Install].
 
 [role="exclude",id="apm-server-configuration"]
 === Step 2: Set up and configure
 
 {move-notice}
 
-Refer to {observability-guide}/apm-server-configuration.html[Step 2: Set up and configure].
+Refer to {observability-guide}/_apm_server_binary.html#apm-server-configuration[Step 2: Set up and configure].
 
 [role="exclude",id="apm-server-starting"]
 === Step 3: Start
 
 {move-notice}
 
-Refer to {observability-guide}/apm-server-starting.html[Step 3: Start].
+Refer to {observability-guide}/_apm_server_binary.html#apm-server-starting[Step 3: Start].
 
 [role="exclude",id="next-steps"]
 === Step 4: Next steps
 
 {move-notice}
 
-Refer to {observability-guide}/apm-next-steps.html[Step 4: Next steps].
+Refer to {observability-guide}/_apm_server_binary.html#apm-next-steps[Step 4: Next steps].
 
 [role="exclude",id="setup-repositories"]
 === Repositories for APT and YUM
 
 {move-notice}
 
-Refer to {observability-guide}/apm-setup-repositories.html[Repositories for APT and YUM].
+Refer to {observability-guide}/_apm_server_binary.html#apm-setup-repositories[Repositories for APT and YUM].
 
 [role="exclude",id="running-on-docker"]
 === Run APM Server on Docker
 
 {move-notice}
 
-Refer to {observability-guide}/apm-running-on-docker.html[Run APM Server on Docker].
+Refer to {observability-guide}/_apm_server_binary.html#apm-running-on-docker[Run APM Server on Docker].
 
 [role="exclude",id="_fleet_managed_apm_server"]
 === Fleet-managed APM Server
@@ -498,28 +498,28 @@ Refer to {observability-guide}/get-started-with-fleet-apm-server.html[Fleet-mana
 
 {move-notice}
 
-Refer to {observability-guide}/_step_1_set_up_fleet.html[Step 1: Set up Fleet].
+Refer to {observability-guide}/get-started-with-fleet-apm-server.html#_step_1_set_up_fleet[Step 1: Set up Fleet].
 
 [role="exclude",id="_step_2_add_and_configure_the_apm_integration"]
 === Step 2: Add and configure the APM integration
 
 {move-notice}
 
-Refer to {observability-guide}/add-apm-integration.html[Step 2: Add and configure the APM integration].
+Refer to {observability-guide}/get-started-with-fleet-apm-server.html#add-apm-integration[Step 2: Add and configure the APM integration].
 
 [role="exclude",id="_step_3_install_apm_agents"]
 === Step 3: Install APM agents
 
 {move-notice}
 
-Refer to {observability-guide}/_step_3_install_apm_agents.html[Step 3: Install APM agents].
+Refer to {observability-guide}/get-started-with-fleet-apm-server.html#_step_3_install_apm_agents[Step 3: Install APM agents].
 
 [role="exclude",id="_step_4_view_your_data"]
 === Step 4: View your data
 
 {move-notice}
 
-Refer to {observability-guide}/_step_4_view_your_data.html[Step 4: View your data].
+Refer to {observability-guide}/get-started-with-fleet-apm-server.html#_step_4_view_your_data[Step 4: View your data].
 
 [role="exclude",id="data-model"]
 === Data Model
@@ -642,14 +642,14 @@ Refer to {observability-guide}/apm-sampling.html[Transaction sampling].
 
 {move-notice}
 
-Refer to {observability-guide}/apm-configure-head-based-sampling.html[Configure head-based sampling].
+Refer to {observability-guide}/apm-sampling.html#apm-configure-head-based-sampling[Configure head-based sampling].
 
 [role="exclude",id="configure-tail-based-sampling"]
 === Configure tail-based sampling
 
 {move-notice}
 
-Refer to {observability-guide}/apm-configure-tail-based-sampling.html[Configure tail-based sampling].
+Refer to {observability-guide}/apm-sampling.html#apm-configure-tail-based-sampling[Configure tail-based sampling].
 
 [role="exclude",id="log-correlation"]
 === Logging integration
@@ -1191,7 +1191,7 @@ Refer to {observability-guide}/apm-monitoring-local-collection.html[Use local co
 
 {move-notice}
 
-Refer to {observability-guide}/apm-select-metrics.html[The select metrics].
+Refer to {observability-guide}/apm-monitoring-local-collection.html#apm-select-metrics[The select metrics].
 
 [role="exclude",id="monitoring-metricbeat-collection"]
 === Use Metricbeat collection
@@ -1226,45 +1226,45 @@ Refer to {observability-guide}/apm-api-events.html[Elastic APM events intake API
 
 {move-notice}
 
-Refer to {observability-guide}/apm-api-metadata.html[Metadata].
+Refer to {observability-guide}/apm-api-events.html#apm-api-metadata[Metadata].
 
 [discrete]
 [[api-metadata-schema]]
 ==== Metadata scheme
 
-Refer to {observability-guide}/apm-api-metadata.html#apm-api-metadata-schema[Metadata scheme].
+Refer to {observability-guide}/apm-api-events.html#apm-api-metadata-schema[Metadata scheme].
 
 [role="exclude",id="api-transaction"]
 === Transactions
 
 {move-notice}
 
-Refer to {observability-guide}/apm-api-transaction.html[Transactions].
+Refer to {observability-guide}/apm-api-events.html#apm-api-transaction[Transactions].
 
 [role="exclude",id="api-span"]
 === Spans
 
 {move-notice}
 
-Refer to {observability-guide}/apm-api-span.html[Spans].
+Refer to {observability-guide}/apm-api-events.html#apm-api-span[Spans].
 
 [role="exclude",id="api-error"]
 === Errors
 
 {move-notice}
 
-Refer to {observability-guide}/apm-api-error.html[Errors].
+Refer to {observability-guide}/apm-api-events.html#apm-api-error[Errors].
 
 [role="exclude",id="api-metricset"]
 === Metrics
-Refer to {observability-guide}/apm-api-metricset.html[Metrics]
+Refer to {observability-guide}/apm-api-events.html#apm-api-metricset[Metrics]
 
 [role="exclude",id="api-event-example"]
 === Example request body
 
 {move-notice}
 
-Refer to {observability-guide}/apm-api-event-example.html[Example request body].
+Refer to {observability-guide}/apm-api-events.html#apm-api-event-example[Example request body].
 
 [role="exclude",id="api-config"]
 === Elastic APM agent configuration API