diff --git a/docs/changelog/119995.yaml b/docs/changelog/119995.yaml
new file mode 100644
index 0000000000000..e9ee8bc5b8458
--- /dev/null
+++ b/docs/changelog/119995.yaml
@@ -0,0 +1,5 @@
+pr: 119995
+summary: "apm-data: Use representative count as event.success_count if available"
+area: Ingest Node
+type: bug
+issues: []
diff --git a/x-pack/plugin/apm-data/src/main/resources/ingest-pipelines/traces-apm@pipeline.yaml b/x-pack/plugin/apm-data/src/main/resources/ingest-pipelines/traces-apm@pipeline.yaml
index f79c07ff40ac0..476cddee48639 100644
--- a/x-pack/plugin/apm-data/src/main/resources/ingest-pipelines/traces-apm@pipeline.yaml
+++ b/x-pack/plugin/apm-data/src/main/resources/ingest-pipelines/traces-apm@pipeline.yaml
@@ -30,13 +30,16 @@ processors:
     field: ["event.duration"]
     ignore_failure: true
     ignore_missing: true
-- set:
-    if: ctx.event?.outcome == 'success'
-    field: event.success_count
-    value: 1
 - set:
     if: ctx.event?.outcome == 'failure'
     field: event.success_count
     value: 0
+- set:
+    if: ctx.event?.outcome == 'success'
+    field: event.success_count
+    value: 1
+- script:
+    if: ctx.event?.outcome == 'success' && ctx[ctx.processor?.event]?.representative_count != null
+    source: ctx.event.success_count = ctx[ctx.processor?.event]?.representative_count;
 - pipeline:
     name: apm@pipeline
diff --git a/x-pack/plugin/apm-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_ingest.yml b/x-pack/plugin/apm-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_ingest.yml
index ea7f948abf0b8..af9b2335afe4a 100644
--- a/x-pack/plugin/apm-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_ingest.yml
+++ b/x-pack/plugin/apm-data/src/yamlRestTest/resources/rest-api-spec/test/20_traces_ingest.yml
@@ -80,7 +80,35 @@ setup:
           - '{"@timestamp": "2017-06-22", "event": {"outcome": "unknown"}}'
 
           - create: {}
-          - '{"@timestamp": "2017-06-22", "event": {"outcome": "success"}}'
+          - '{
+            "@timestamp": "2017-06-22",
+            "processor": {"event": "transaction"},
+            "event": {"outcome": "success"},
+            "transaction": {"representative_count": 2}
+          }'
+
+          - create: {}
+          - '{
+            "@timestamp": "2017-06-22",
+            "processor": {"event": "span"},
+            "event": {"outcome": "success"},
+            "span": {"representative_count": 3}
+          }'
+
+          - create: {}
+          - '{
+            "@timestamp": "2017-06-22",
+            "processor": {"event": "span"},
+            "event": {"outcome": "success"},
+            "span": {"representative_count": null}
+          }'
+
+          - create: {}
+          - '{
+            "@timestamp": "2017-06-22",
+            "processor": {"event": "transaction"},
+            "event": {"outcome": "success"}
+          }'
 
           - create: {}
           - '{"@timestamp": "2017-06-22", "event": {"outcome": "failure"}}'
@@ -92,8 +120,11 @@ setup:
         index: traces-apm-testing
         body:
           fields: ["event.success_count"]
-  - length: { hits.hits: 4 }
+  - length: { hits.hits: 7 }
   - match: { hits.hits.0.fields: null }
   - match: { hits.hits.1.fields: null }
-  - match: { hits.hits.2.fields: {"event.success_count": [1]} }
-  - match: { hits.hits.3.fields: {"event.success_count": [0]} }
+  - match: { hits.hits.2.fields: {"event.success_count": [2]} }
+  - match: { hits.hits.3.fields: {"event.success_count": [3]} }
+  - match: { hits.hits.4.fields: {"event.success_count": [1]} }
+  - match: { hits.hits.5.fields: {"event.success_count": [1]} }
+  - match: { hits.hits.6.fields: {"event.success_count": [0]} }