diff --git a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/definitions.json b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/definitions.json
index 776c411609f3..04febbe43031 100644
--- a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/definitions.json
+++ b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/definitions.json
@@ -1320,13 +1320,21 @@
     },
     "BackendCredentialsContract": {
       "properties": {
+        "certificateIds": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "maxItems": 32,
+          "description": "List of Client Certificate Ids."
+        },
         "certificate": {
           "type": "array",
           "items": {
             "type": "string"
           },
           "maxItems": 32,
-          "description": "List of Client Certificate Thumbprint."
+          "description": "List of Client Certificate Thumbprints. Will be ignored if certificatesIds are provided."
         },
         "query": {
           "type": "object",
@@ -1417,8 +1425,12 @@
     },
     "BackendServiceFabricClusterProperties": {
       "properties": {
+        "clientCertificateId": {
+          "description": "The client certificate id for the management endpoint.",
+          "type": "string"
+        },
         "clientCertificatethumbprint": {
-          "description": "The client certificate thumbprint for the management endpoint.",
+          "description": "The client certificate thumbprint for the management endpoint. Will be ignored if certificatesIds are provided",
           "type": "string"
         },
         "maxPartitionResolutionRetries": {
@@ -1449,8 +1461,7 @@
         }
       },
       "required": [
-        "managementEndpoints",
-        "clientCertificatethumbprint"
+        "managementEndpoints"
       ],
       "description": "Properties of the Service Fabric Type Backend."
     },
diff --git a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementCreateBackendServiceFabric.json b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementCreateBackendServiceFabric.json
index d15296dc92df..7554eb005b06 100644
--- a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementCreateBackendServiceFabric.json
+++ b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementCreateBackendServiceFabric.json
@@ -15,7 +15,7 @@
             "managementEndpoints": [
               "https://somecluster.com"
             ],
-            "clientCertificatethumbprint": "EBA029198AA3E76EF0D70482626E5BCF148594A6",
+            "clientCertificateId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/certificates/cert1",
             "serverX509Names": [
               {
                 "name": "ServerCommonName1",
@@ -43,7 +43,7 @@
               "managementEndpoints": [
                 "https://somecluster.com"
               ],
-              "clientCertificatethumbprint": "EBA029198AA3E76EF0D70482626E5BCF148594A6",
+              "clientCertificateId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/certificates/cert1",
               "serverX509Names": [
                 {
                   "name": "ServerCommonName1",
@@ -70,7 +70,7 @@
               "managementEndpoints": [
                 "https://somecluster.com"
               ],
-              "clientCertificatethumbprint": "EBA029198AA3E76EF0D70482626E5BCF148594A6",
+              "clientCertificateId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/certificates/cert1",
               "serverX509Names": [
                 {
                   "name": "ServerCommonName1",
diff --git a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementGetBackend.json b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementGetBackend.json
index 1c91275b8805..142fd94a588c 100644
--- a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementGetBackend.json
+++ b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementGetBackend.json
@@ -21,7 +21,7 @@
               "managementEndpoints": [
                 "https://somecluster.com"
               ],
-              "clientCertificatethumbprint": "EBA029198AA3E76EF0D70482626E5BCF148594A6",
+              "clientCertificateId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/certificates/cert1",
               "serverX509Names": [
                 {
                   "name": "ServerCommonName1",
diff --git a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementListBackends.json b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementListBackends.json
index fc642e27349f..c83e041cbdf9 100644
--- a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementListBackends.json
+++ b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/examples/ApiManagementListBackends.json
@@ -60,7 +60,7 @@
                   "managementEndpoints": [
                     "https://somecluster.com"
                   ],
-                  "clientCertificatethumbprint": "EBA029198AA3E76EF0D70482626E5BCF148594A6",
+                  "clientCertificateId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/certificates/cert1",
                   "serverX509Names": [
                     {
                       "name": "ServerCommonName1",