diff --git a/app/controllers/api/v1/admin/measures_controller.rb b/app/controllers/api/v1/admin/measures_controller.rb
index d879cca926b..e90e50f999b 100644
--- a/app/controllers/api/v1/admin/measures_controller.rb
+++ b/app/controllers/api/v1/admin/measures_controller.rb
@@ -18,8 +18,8 @@ class Api::V1::Admin::MeasuresController < Api::BaseController
   def set_measures
     @measures = Admin::Metrics::Measure.retrieve(
       params.require(:keys),
-      params.require(:start_at),
-      params.require(:end_at),
+      params[:start_at],
+      params[:end_at],
       params
     )
   end
diff --git a/app/lib/admin/metrics/dimension/base_dimension.rb b/app/lib/admin/metrics/dimension/base_dimension.rb
index 348d3cfc62f..ae42515bcd9 100644
--- a/app/lib/admin/metrics/dimension/base_dimension.rb
+++ b/app/lib/admin/metrics/dimension/base_dimension.rb
@@ -18,7 +18,12 @@ class Admin::Metrics::Dimension::BaseDimension
     @params   = params
     @loaded   = false
 
-    @start_at = [@start_at, @end_at - 2.years].max if @start_at.present? && @end_at.present?
+    if @start_at.present? && @end_at.present?
+      @start_at = [@start_at, @end_at - 2.years].max
+    else
+      @start_at = nil
+      @end_at = nil
+    end
   end
 
   def key
diff --git a/app/lib/admin/metrics/measure/base_measure.rb b/app/lib/admin/metrics/measure/base_measure.rb
index 68714f6e2d3..5e7056f1627 100644
--- a/app/lib/admin/metrics/measure/base_measure.rb
+++ b/app/lib/admin/metrics/measure/base_measure.rb
@@ -12,12 +12,17 @@ class Admin::Metrics::Measure::BaseMeasure
   alias loaded? loaded
 
   def initialize(start_at, end_at, params)
-    @start_at = start_at.to_datetime
-    @end_at   = end_at.to_datetime
+    @start_at = start_at&.to_datetime
+    @end_at   = end_at&.to_datetime
     @params   = params
     @loaded   = false
 
-    @start_at = [@start_at, @end_at - 2.years].max
+    if @start_at.present? && @end_at.present?
+      @start_at = [@start_at, @end_at - 2.years].max
+    else
+      @start_at = nil
+      @end_at = nil
+    end
   end
 
   def cache_key
diff --git a/spec/requests/api/v1/admin/measures_spec.rb b/spec/requests/api/v1/admin/measures_spec.rb
index 021c4510fe1..5cfb85762d4 100644
--- a/spec/requests/api/v1/admin/measures_spec.rb
+++ b/spec/requests/api/v1/admin/measures_spec.rb
@@ -53,6 +53,20 @@ RSpec.describe 'Admin Measures' do
         expect(response.parsed_body)
           .to be_an(Array)
       end
+
+      context 'without start_at and end_at' do
+        it 'returns http success and status json' do
+          post '/api/v1/admin/measures', params: params.merge({ start_at: nil, end_at: nil }), headers: headers
+
+          expect(response)
+            .to have_http_status(200)
+          expect(response.content_type)
+            .to start_with('application/json')
+
+          expect(response.parsed_body)
+            .to be_an(Array)
+        end
+      end
     end
   end
 end