diff --git a/sdk/servicebus/azure-servicebus/CHANGELOG.md b/sdk/servicebus/azure-servicebus/CHANGELOG.md
index 473f94715dcc..8a8fe9921ba7 100644
--- a/sdk/servicebus/azure-servicebus/CHANGELOG.md
+++ b/sdk/servicebus/azure-servicebus/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Release History
 
-## 7.0.0b2 (Unreleased)
+## 7.0.0b2 (2020-05-04)
 
 **New Features**
 
@@ -10,9 +10,12 @@
     - Use `ServiceBusSender.schedule(messages, schedule_time_utc)` for scheduling messages.
     - Use `ServiceBusSender.cancel_scheduled_messages(sequence_numbers)` for scheduled messages cancellation.
 * `ServiceBusSender.send()` can now send a list of messages in one call, if they fit into a single batch.  If they do not fit a `ValueError` is thrown.
-* `BatchMessage.add()` and `ServiceBusSender.send()` raises `MessageContentTooLarge`, which is a subclass of `ValueError` if the content is over-sized.
-* `ServiceBusReceiver.receive()` raises `ValueError` if the max_batch_size is greater than the prefetch of `ServiceBusClient`.
+* `BatchMessage.add()` and `ServiceBusSender.send()` would raise `MessageContentTooLarge` if the content is over-sized.
+* `ServiceBusReceiver.receive()` raises `ValueError` if its param `max_batch_size` is greater than param `prefetch` of `ServiceBusClient`.
 * Added exception classes `MessageError`, `MessageContentTooLarge`, `ServiceBusAuthenticationError`.
+   - `MessageError`: when you send a problematic message, such as an already sent message or an over-sized message.
+   - `MessageContentTooLarge`: when you send an over-sized message. A subclass of `ValueError` and `MessageError`.
+   - `ServiceBusAuthenticationError`: on failure to be authenticated by the service.
 * Removed exception class `InvalidHandlerState`.
 
 **BugFixes**
diff --git a/sdk/servicebus/azure-servicebus/azure/servicebus/_common/message.py b/sdk/servicebus/azure-servicebus/azure/servicebus/_common/message.py
index 8d1a0daa5c57..b9d924e91a9b 100644
--- a/sdk/servicebus/azure-servicebus/azure/servicebus/_common/message.py
+++ b/sdk/servicebus/azure-servicebus/azure/servicebus/_common/message.py
@@ -340,7 +340,7 @@ def add(self, message):
         :param message: The Message to be added to the batch.
         :type message: ~azure.servicebus.Message
         :rtype: None
-        :raises: :class:`ValueError`, when exceeding the size limit.
+        :raises: :class: ~azure.servicebus.exceptions.MessageContentTooLarge, when exceeding the size limit.
         """
         message_size = message.message.get_message_encoded_size()
 
diff --git a/sdk/servicebus/azure-servicebus/azure/servicebus/_servicebus_sender.py b/sdk/servicebus/azure-servicebus/azure/servicebus/_servicebus_sender.py
index 3d5dfed1f926..96464f088616 100644
--- a/sdk/servicebus/azure-servicebus/azure/servicebus/_servicebus_sender.py
+++ b/sdk/servicebus/azure-servicebus/azure/servicebus/_servicebus_sender.py
@@ -301,10 +301,14 @@ def send(self, message):
         :param message: The ServiceBus message to be sent.
         :type message: ~azure.servicebus.Message or ~azure.servicebus.BatchMessage or list[~azure.servicebus.Message]
         :rtype: None
-        :raises: :class: ~azure.servicebus.exceptions.MessageSendFailed if the message fails to
-         send
+        :raises:
                 :class: ~azure.servicebus.exceptions.OperationTimeoutError if sending times out.
-                :class: `ValueError` if list of messages is provided and cannot fit in a batch.
+                :class: ~azure.servicebus.exceptions.MessageContentTooLarge if the size of the message is over
+                  service bus frame size limit.
+                :class: ~azure.servicebus.exceptions.MessageSendFailed if the message fails to send
+                :class: ~azure.servicebus.exceptions.ServiceBusError when other errors happen such as connection
+                 error, authentication error, and any unexpected errors.
+                 It's also the top-level root class of above errors.
 
         .. admonition:: Example:
 
diff --git a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
index 32e65996da7f..e672dc868ad4 100644
--- a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
+++ b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
@@ -244,10 +244,14 @@ async def send(self, message):
         :param message: The ServiceBus message to be sent.
         :type message: ~azure.servicebus.Message or ~azure.servicebus.BatchMessage or list[~azure.servicebus.Message]
         :rtype: None
-        :raises: :class: ~azure.servicebus.exceptions.MessageSendFailed if the message fails to
-         send
+        :raises:
                 :class: ~azure.servicebus.exceptions.OperationTimeoutError if sending times out.
-                :class: `ValueError` if list of messages is provided and cannot fit in a batch.
+                :class: ~azure.servicebus.exceptions.MessageContentTooLarge if the size of the message is over
+                  service bus frame size limit.
+                :class: ~azure.servicebus.exceptions.MessageSendFailed if the message fails to send
+                :class: ~azure.servicebus.exceptions.ServiceBusError when other errors happen such as connection
+                 error, authentication error, and any unexpected errors.
+                 It's also the top-level root class of above errors.
 
         .. admonition:: Example: