diff --git a/sdk/cosmos/azure-cosmos/src/main/java/com/azure/cosmos/models/CosmosPatchOperations.java b/sdk/cosmos/azure-cosmos/src/main/java/com/azure/cosmos/models/CosmosPatchOperations.java
index 431512211d7d4..ca8d7ccca319a 100644
--- a/sdk/cosmos/azure-cosmos/src/main/java/com/azure/cosmos/models/CosmosPatchOperations.java
+++ b/sdk/cosmos/azure-cosmos/src/main/java/com/azure/cosmos/models/CosmosPatchOperations.java
@@ -86,8 +86,6 @@ public static CosmosPatchOperations create() {
      * @return same instance of {@link CosmosPatchOperations}
      */
     public <T> CosmosPatchOperations add(String path, T value) {
-
-        checkNotNull(value, "expected non-null value");
         checkArgument(StringUtils.isNotEmpty(path), "path empty %s", path);
 
         this.patchOperations.add(
@@ -182,7 +180,6 @@ public <T> CosmosPatchOperations replace(String path, T value) {
      */
     public <T> CosmosPatchOperations set(String path, T value) {
 
-        checkNotNull(value, "expected non-null value");
         checkArgument(StringUtils.isNotEmpty(path), "path empty %s", path);
 
         this.patchOperations.add(
diff --git a/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchAsyncTest.java b/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchAsyncTest.java
index f1264248ed4c5..526ee88cef858 100644
--- a/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchAsyncTest.java
+++ b/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchAsyncTest.java
@@ -3,6 +3,7 @@
 
 package com.azure.cosmos;
 
+import com.azure.cosmos.implementation.Utils;
 import com.azure.cosmos.models.CosmosBatch;
 import com.azure.cosmos.models.CosmosBatchPatchItemRequestOptions;
 import com.azure.cosmos.models.CosmosBatchResponse;
@@ -12,7 +13,9 @@
 import com.azure.cosmos.models.CosmosBulkPatchItemRequestOptions;
 import com.azure.cosmos.models.CosmosItemOperation;
 import com.azure.cosmos.models.CosmosItemResponse;
+import com.azure.cosmos.models.CosmosPatchOperations;
 import com.azure.cosmos.models.PartitionKey;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.testng.annotations.AfterClass;
 import org.testng.annotations.BeforeClass;
@@ -22,6 +25,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.UUID;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -251,4 +255,35 @@ public void patchInBulk() {
         testDocForPatch.setDescription("xx");
         this.verifyByRead(container, testDocForPatch);
     }
+
+    @Test(groups = {  "emulator"  }, timeOut = TIMEOUT)
+    public void itemPatchSuccessForNullValue() {
+        // Null value should be allowed for add, set, and replace
+
+        ObjectNode objectNode = Utils.getSimpleObjectMapper().createObjectNode();
+        String id = UUID.randomUUID().toString();
+        String pkValue = "mypk";
+
+        String stringColumnName = "stringColumn";
+        String stringColumnName2 = "stringColumn2";
+        String newStringColumnName = "newStringColumn";
+
+        objectNode.put("id", id);
+        objectNode.put("mypk", pkValue);
+        objectNode.put(stringColumnName, UUID.randomUUID().toString());
+        objectNode.put(stringColumnName2, UUID.randomUUID().toString());
+
+        this.container.createItem(objectNode).block();
+
+        CosmosPatchOperations patchOperations = CosmosPatchOperations.create();
+        patchOperations.add("/" + newStringColumnName, null);
+        patchOperations.replace("/" + stringColumnName, null);
+        patchOperations.set("/" + stringColumnName2, null);
+
+        ObjectNode patchedItem = this.container.patchItem(id, new PartitionKey(pkValue), patchOperations, ObjectNode.class).block().getItem();
+        assertThat(patchedItem).isNotNull();
+        assert(patchedItem.get(newStringColumnName)).isNull();
+        assert(patchedItem.get(stringColumnName)).isNull();
+        assert(patchedItem.get(stringColumnName2)).isNull();
+    }
 }
diff --git a/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchTest.java b/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchTest.java
index f63525d6acfa5..f8a00b405c990 100644
--- a/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchTest.java
+++ b/sdk/cosmos/azure-cosmos/src/test/java/com/azure/cosmos/PatchTest.java
@@ -3,12 +3,15 @@
 
 package com.azure.cosmos;
 
+import com.azure.cosmos.implementation.Utils;
 import com.azure.cosmos.models.CosmosItemRequestOptions;
 import com.azure.cosmos.models.CosmosItemResponse;
 import com.azure.cosmos.models.CosmosPatchItemRequestOptions;
+import com.azure.cosmos.models.CosmosPatchOperations;
 import com.azure.cosmos.models.PartitionKey;
 import com.azure.cosmos.rx.TestSuiteBase;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.testng.annotations.AfterClass;
 import org.testng.annotations.BeforeClass;
@@ -55,7 +58,7 @@ public void itemConditionalPatchSuccess() {
 
         assertThat(testItem.children[1].status).isNull();
 
-        com.azure.cosmos.models.CosmosPatchOperations cosmosPatchOperations = com.azure.cosmos.models.CosmosPatchOperations.create();
+        CosmosPatchOperations cosmosPatchOperations = CosmosPatchOperations.create();
         cosmosPatchOperations.add("/children/1/CamelCase", "patched");
         cosmosPatchOperations.remove("/description");
         cosmosPatchOperations.replace("/taskNum", newTaskNum);
@@ -166,7 +169,7 @@ public void itemPatchContentResponseOnWriteEnabled() {
 
         assertThat(testItem.children[1].status).isNull();
 
-        com.azure.cosmos.models.CosmosPatchOperations cosmosPatchOperations = com.azure.cosmos.models.CosmosPatchOperations.create();
+        CosmosPatchOperations cosmosPatchOperations = CosmosPatchOperations.create();
         cosmosPatchOperations.add("/children/1/CamelCase", "alpha");
         cosmosPatchOperations.remove("/description");
         cosmosPatchOperations.replace("/taskNum", newTaskNum);
@@ -186,7 +189,7 @@ public void itemPatchContentResponseOnWriteEnabled() {
         assertThat(response.getItem()).isNull(); // skip content is true
 
         // Right now
-        com.azure.cosmos.models.CosmosPatchOperations cosmosPatchOperations2 = com.azure.cosmos.models.CosmosPatchOperations.create();
+        CosmosPatchOperations cosmosPatchOperations2 = CosmosPatchOperations.create();
         cosmosPatchOperations2.set("/valid", false);
 
         CosmosItemResponse<ToDoActivity> response2 = this.container.patchItem(
@@ -220,7 +223,7 @@ public void itemPatchContentResponseOnWriteEnabled() {
     public void itemPatchFailure() {
         // Create an item
         ToDoActivity testItem = ToDoActivity.createRandomItem(this.container);
-        com.azure.cosmos.models.CosmosPatchOperations cosmosPatchOperations = com.azure.cosmos.models.CosmosPatchOperations.create();
+        CosmosPatchOperations cosmosPatchOperations = CosmosPatchOperations.create();
         cosmosPatchOperations.add("/nonExistentParent/child", "bar");
         cosmosPatchOperations.remove("/cost");
 
@@ -271,6 +274,37 @@ public void itemPatchFailure() {
         }
     }
 
+    @Test(groups = {  "emulator"  }, timeOut = TIMEOUT * 100)
+    public void itemPatchSuccessForNullValue() {
+        // Null value should be allowed for add, set, and replace
+
+        ObjectNode objectNode = Utils.getSimpleObjectMapper().createObjectNode();
+        String id = UUID.randomUUID().toString();
+        String pkValue = "mypk";
+
+        String stringColumnName = "stringColumn";
+        String stringColumnName2 = "stringColumn2";
+        String newStringColumnName = "newStringColumn";
+
+        objectNode.put("id", id);
+        objectNode.put("mypk", pkValue);
+        objectNode.put(stringColumnName, UUID.randomUUID().toString());
+        objectNode.put(stringColumnName2, UUID.randomUUID().toString());
+
+        this.container.createItem(objectNode);
+
+        CosmosPatchOperations patchOperations = CosmosPatchOperations.create();
+        patchOperations.add("/" + newStringColumnName, null);
+        patchOperations.replace("/" + stringColumnName, null);
+        patchOperations.set("/" + stringColumnName2, null);
+
+        ObjectNode patchedItem = this.container.patchItem(id, new PartitionKey(pkValue), patchOperations, ObjectNode.class).getItem();
+        assertThat(patchedItem).isNotNull();
+        assert(patchedItem.get(newStringColumnName)).isNull();
+        assert(patchedItem.get(stringColumnName)).isNull();
+        assert(patchedItem.get(stringColumnName2)).isNull();
+    }
+
     public static class ToDoActivity {
 
         public String id;