diff --git a/Feature-Toggles/PERF/featureToggle.json b/Feature-Toggles/PERF/featureToggle.json
index dab2e4b..762e4ea 100644
--- a/Feature-Toggles/PERF/featureToggle.json
+++ b/Feature-Toggles/PERF/featureToggle.json
@@ -39,7 +39,7 @@
     "isEnableWristbandF2":true,
     "enableReturnCheckForReconciledItems":true,
     "enableCancelationProcessEnhancement_DO_36407":true,
-    "enablePastSampleTestingResultValidation_V4_19392":true,
+    "enablePastSampleTestingResultValidation_V4_19392":false,
     "disableConsentUploadAndEmergencyDetMandatory_DO_34884":true,
     "enableRestrictingSplitOptionForHoldUnits_DO_36262":true
     },