diff --git a/.chloggen/groupbytraceprocessor-checkapi-26304.yaml b/.chloggen/groupbytraceprocessor-checkapi-26304.yaml
new file mode 100755
index 000000000000..d8b76e079ffc
--- /dev/null
+++ b/.chloggen/groupbytraceprocessor-checkapi-26304.yaml
@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: groupbytraceprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Do not export the function `MetricViews` and pass checkapi.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [26304]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [api]
\ No newline at end of file
diff --git a/cmd/checkapi/allowlist.txt b/cmd/checkapi/allowlist.txt
index 158a8bf1a1cc..7160813ce952 100644
--- a/cmd/checkapi/allowlist.txt
+++ b/cmd/checkapi/allowlist.txt
@@ -9,7 +9,6 @@ exporter/sentryexporter
 exporter/sumologicexporter
 extension/observer/ecsobserver
 extension/observer
-processor/groupbytraceprocessor
 processor/servicegraphprocessor
 receiver/carbonreceiver
 receiver/collectdreceiver
diff --git a/processor/groupbytraceprocessor/event_test.go b/processor/groupbytraceprocessor/event_test.go
index ce6905da6b0b..bc6635d4d4e0 100644
--- a/processor/groupbytraceprocessor/event_test.go
+++ b/processor/groupbytraceprocessor/event_test.go
@@ -413,7 +413,7 @@ func TestEventShutdown(t *testing.T) {
 
 func TestPeriodicMetrics(t *testing.T) {
 	// prepare
-	views := MetricViews()
+	views := metricViews()
 
 	// ensure that we are starting with a clean state
 	view.Unregister(views...)
diff --git a/processor/groupbytraceprocessor/factory.go b/processor/groupbytraceprocessor/factory.go
index 281ba8ac6f04..d474d91350f7 100644
--- a/processor/groupbytraceprocessor/factory.go
+++ b/processor/groupbytraceprocessor/factory.go
@@ -32,7 +32,7 @@ var (
 // NewFactory returns a new factory for the Filter processor.
 func NewFactory() processor.Factory {
 	// TODO: find a more appropriate way to get this done, as we are swallowing the error here
-	_ = view.Register(MetricViews()...)
+	_ = view.Register(metricViews()...)
 
 	return processor.NewFactory(
 		metadata.Type,
diff --git a/processor/groupbytraceprocessor/metrics.go b/processor/groupbytraceprocessor/metrics.go
index e037d11c1e0f..52584db63e5e 100644
--- a/processor/groupbytraceprocessor/metrics.go
+++ b/processor/groupbytraceprocessor/metrics.go
@@ -23,8 +23,8 @@ var (
 	mEventLatency       = stats.Int64("processor_groupbytrace_event_latency", "How long the queue events are taking to be processed", stats.UnitMilliseconds)
 )
 
-// MetricViews return the metrics views according to given telemetry level.
-func MetricViews() []*view.View {
+// metricViews return the metrics views according to given telemetry level.
+func metricViews() []*view.View {
 	return []*view.View{
 		{
 			Name:        processorhelper.BuildCustomMetricName(string(metadata.Type), mNumTracesConf.Name()),
diff --git a/processor/groupbytraceprocessor/metrics_test.go b/processor/groupbytraceprocessor/metrics_test.go
index e274ab62b537..c6fdd71004f9 100644
--- a/processor/groupbytraceprocessor/metrics_test.go
+++ b/processor/groupbytraceprocessor/metrics_test.go
@@ -21,7 +21,7 @@ func TestProcessorMetrics(t *testing.T) {
 		"processor/groupbytrace/processor_groupbytrace_event_latency",
 	}
 
-	views := MetricViews()
+	views := metricViews()
 	for i, viewName := range expectedViewNames {
 		assert.Equal(t, viewName, views[i].Name)
 	}