diff --git a/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/billing.json b/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/billing.json
index 5852662bd8d3..443f231fe941 100644
--- a/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/billing.json
+++ b/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/billing.json
@@ -2692,6 +2692,48 @@
         }
       }
     },
+    "/providers/Microsoft.Billing/transfers/{transferName}/validateTransfer": {
+      "post": {
+        "tags": [
+          "RecipientTransfers"
+        ],
+        "summary": "Validates if the products can be transferred in the context of the given transfer name.",
+        "operationId": "RecipientTransfers_Validate",
+        "x-ms-examples": {
+          "ValidateTransfer": {
+            "$ref": "./examples/ValidateTransfer.json"
+          }
+        },
+        "parameters": [
+          {
+            "$ref": "#/parameters/transferNameParameter"
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/AcceptTransferRequest"
+            },
+            "description": "Parameters supplied to validate the transfer."
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Results of the transfer validation.",
+            "schema": {
+              "$ref": "#/definitions/ValidateTransferListResponse"
+            }
+          },
+          "default": {
+            "description": "Unexpected error.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        }
+      }
+    },
     "/providers/Microsoft.Billing/transfers/{transferName}/declineTransfer": {
       "post": {
         "tags": [
@@ -6209,6 +6251,73 @@
         }
       }
     },
+    "ValidateTransferListResponse": {
+      "description": "Result of transfer validation.",
+      "properties": {
+        "value": {
+          "description": "The list of transfer validation results.",
+          "type": "array",
+          "readOnly": true,
+          "items": {
+            "$ref": "#/definitions/ValidateTransferResponse"
+          }
+        }
+      }
+    },
+    "ValidateTransferResponse": {
+      "type": "object",
+      "description": "Transfer validation response.",
+      "properties": {
+        "properties": {
+          "description": "Transfer validation response properties.",
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/ValidateTransferResponseProperties"
+        }
+      }
+    },
+    "ValidateTransferResponseProperties": {
+      "type": "object",
+      "description": "Properties of transfer validation response.",
+      "properties": {
+        "status": {
+          "description": "The status of validation",
+          "type": "string",
+          "readOnly": true
+        },
+        "productId": {
+          "description": "The product id for which this result applies.",
+          "type": "string",
+          "readOnly": true
+        },
+        "results": {
+          "description": "Array of validation results.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ValidationResultProperties"
+          }
+        }
+      }
+    },
+    "ValidationResultProperties": {
+      "description": "The properties of the validation result.",
+      "properties": {
+        "level": {
+          "description": "Result Level.",
+          "type": "string",
+          "readOnly": true
+        },
+        "code": {
+          "description": "Result Code.",
+          "type": "string",
+          "readOnly": true
+        },
+        "message": {
+          "description": "The validation message.",
+          "type": "string",
+          "readOnly": true
+        }
+      }
+    },
     "Participants": {
       "description": "Details about the participant or signer.",
       "properties": {
@@ -6453,4 +6562,4 @@
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/examples/ValidateTransfer.json b/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/examples/ValidateTransfer.json
new file mode 100644
index 000000000000..71676be98274
--- /dev/null
+++ b/specification/billing/resource-manager/Microsoft.Billing/preview/2019-10-01-preview/examples/ValidateTransfer.json
@@ -0,0 +1,41 @@
+{
+  "parameters": {
+    "api-version": "2019-10-01-preview",
+    "transferName": "transferName",
+    "parameters": {
+      "properties": {
+        "productDetails": [
+          {
+            "productType": "AzureSubscription",
+            "productId": "subscriptionId"
+          },
+          {
+            "productType": "AzureReservation",
+            "productId": "reservedInstanceId"
+          }
+        ]
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "value": [
+          {
+            "properties": {
+              "productId": "subscriptionId",
+              "status": "Failed",
+              "results": [
+                {
+                  "level": "Error",
+                  "code": "NotIntendedRecipient",
+                  "message": "Intented recipient is different."
+                }
+              ]
+            }
+          }
+        ]
+      }
+    }
+  }
+}
\ No newline at end of file