diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json
index fe19fb417e7f..7f559ac4bb90 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json
@@ -1035,6 +1035,9 @@
               "$ref": "#/definitions/QueryResult"
             }
           },
+          "204": {
+            "description": "An empty response is sent when there is no information available within the selected scope."
+          },
           "default": {
             "description": "Error response describing why the operation failed.",
             "schema": {
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQuery.json
index 80d3082985f3..18371f24b006 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQuery.json
@@ -102,6 +102,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQueryGrouping.json
index cc666efa60dd..3af6c6d0d630 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/BillingAccountQueryGrouping.json
@@ -64,6 +64,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQuery.json
index 59cd36defe51..374be609ec62 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQuery.json
@@ -103,6 +103,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQueryGrouping.json
index 27ae96d00be2..7a848acb35e2 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/DepartmentQueryGrouping.json
@@ -65,6 +65,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQuery.json
index d8adb4734eea..a8d50915666c 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQuery.json
@@ -103,6 +103,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQueryGrouping.json
index 34d2421e5a3a..be07fb17b956 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/EnrollmentAccountQueryGrouping.json
@@ -72,6 +72,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQuery.json
index 8abfb5dc2eca..aa1f7f584054 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQuery.json
@@ -102,6 +102,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQueryGrouping.json
index 648ebf053be2..72ecbe1b2604 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingAccountQueryGrouping.json
@@ -64,6 +64,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQuery.json
index 89e2f2fb78ca..c336a5eda860 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQuery.json
@@ -103,6 +103,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQueryGrouping.json
index 3946eb12c2cf..2f1abd9991c3 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCABillingProfileQueryGrouping.json
@@ -65,6 +65,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQuery.json
index 41a095e8750c..54acc84d4643 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQuery.json
@@ -103,6 +103,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQueryGrouping.json
index a4629cc12c8c..6f843ba5164b 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCACustomerQueryGrouping.json
@@ -65,6 +65,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQuery.json
index ddacc8d3b487..d2acfead7de7 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQuery.json
@@ -104,6 +104,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQueryGrouping.json
index c680c09d1ac3..b68c00b7e14a 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/MCAInvoiceSectionQueryGrouping.json
@@ -66,6 +66,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQuery.json
index 8bb619cee8e3..cb79d6659bd9 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQuery.json
@@ -102,6 +102,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQueryGrouping.json
index 0f3b0ef56cd3..7f2e22ffdd12 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ManagementGroupQueryGrouping.json
@@ -71,6 +71,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQuery.json
index 052910483e76..61a7a6e4b168 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQuery.json
@@ -91,6 +91,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQueryGrouping.json
index da7cb4d9a91f..cb6295637cb9 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/ResourceGroupQueryGrouping.json
@@ -66,6 +66,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQuery.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQuery.json
index c9d3f535ad9c..60a4ec1cdec5 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQuery.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQuery.json
@@ -102,6 +102,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQueryGrouping.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQueryGrouping.json
index f155bfd59622..aaec29999c08 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQueryGrouping.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/examples/SubscriptionQueryGrouping.json
@@ -69,6 +69,7 @@
           ]
         }
       }
-    }
+    },
+    "204": {}
   }
 }