diff --git a/EMEA_PROD/slo/Wirkkette__FTS_Service__-_Reliability_of_key_requests.tf b/EMEA_PROD/slo/Wirkkette__FTS_Service__-_Reliability_of_key_requests.tf
index a7f56b6..778aacb 100644
--- a/EMEA_PROD/slo/Wirkkette__FTS_Service__-_Reliability_of_key_requests.tf
+++ b/EMEA_PROD/slo/Wirkkette__FTS_Service__-_Reliability_of_key_requests.tf
@@ -14,7 +14,19 @@ module Wirkkette__FTS_Service__-_Reliability_of_key_requests {
             
 
     #metric expression of the calculation as done in data explorer ui
-    metric_expression           = "(100)*(((calc:service.successful_requests_simplepois_only_fts_calls:splitBy():sum)+(calc:service.successful_requests_getpois_only_fts_calls:splitBy():sum))/((calc:service.request_count_simplepois_only_fts_calls:splitBy():sum)+(calc:service.request_count_getpois_only_fts_calls:splitBy():sum)))" 
+    metric_expression           = <<-EOT
+(100)-(builtin:service.keyRequest.errors.fivexx.rate:filter(and(in("dt.entity.service_method",entitySelector("type(service_method), 
+fromRelationship.isServiceMethodOfService(
+                            type(~"SERVICE~"),entityName.in(
+                                ~"SimplePOIs~",
+				~"POIs~"
+                                )
+                        )
+                    ,entityName.in(
+                        ~"getSimplePOIs (FTS Calls)~",
+			~"getPOIs (FTS Calls)~"
+                        )")))):splitBy())
+    EOT
  
 
     #if not set (removed) it's defaulted to "-1d"