diff --git a/cterasdk/edge/directoryservice.py b/cterasdk/edge/directoryservice.py
index c458c4f2..82c33f45 100644
--- a/cterasdk/edge/directoryservice.py
+++ b/cterasdk/edge/directoryservice.py
@@ -108,7 +108,6 @@ def set_advanced_mapping(self, mappings):
             raise CTERAException('Failed to configure advanced mapping. Not connected to directory services.')
 
         domains = self.domains()
-        advanced_mapping = self._edge.api.get('/config/fileservices/cifs/idMapping/map')
         advanced_mapping = []
         for mapping in mappings:
             if mapping.domainFlatName in domains:
diff --git a/docs/source/UserGuides/Edge/Configuration.rst b/docs/source/UserGuides/Edge/Configuration.rst
index 16b611e6..716af95d 100644
--- a/docs/source/UserGuides/Edge/Configuration.rst
+++ b/docs/source/UserGuides/Edge/Configuration.rst
@@ -449,6 +449,8 @@ Active Directory
 
    edge.directoryservice.set_advanced_mapping(advanced_mapping)  # this function will skip domains that are not found
 
+.. note::  This method sets the advanced mapping of domains and requires the full list of mappings.
+   It does not append to the existing configuration—any existing mappings will be overwritten.
 .. note:: to retrieve a list of domain flat names, use :py:func:`cterasdk.edge.directoryservice.domains()`
 
 .. automethod:: cterasdk.edge.directoryservice.DirectoryService.disconnect
diff --git a/docs/source/UserGuides/Miscellaneous/Changelog.rst b/docs/source/UserGuides/Miscellaneous/Changelog.rst
index 73c52757..d44c94b2 100644
--- a/docs/source/UserGuides/Miscellaneous/Changelog.rst
+++ b/docs/source/UserGuides/Miscellaneous/Changelog.rst
@@ -9,7 +9,13 @@ Improvements
 
 * Added support for enabling or disabling Direct Mode on CTERA Portal Storage Nodes.
 
-Related issues and pull requests on GitHub: `#310 <https://github.com/ctera/ctera-python-sdk/pull/310>`_
+Bug Fixes
+^^^^^^^^^
+
+* Removed redundant call when retrieving the list of domain mappings.
+
+Related issues and pull requests on GitHub: `#310 <https://github.com/ctera/ctera-python-sdk/pull/310>`_,
+`#311 <https://github.com/ctera/ctera-python-sdk/pull/311>`_
 
 2.20.15
 -------
diff --git a/tests/ut/edge/test_directory_service.py b/tests/ut/edge/test_directory_service.py
index d07e8ed9..1a145e3b 100644
--- a/tests/ut/edge/test_directory_service.py
+++ b/tests/ut/edge/test_directory_service.py
@@ -146,10 +146,7 @@ def test_set_advanced_mapping(self):
         ]
         self._init_filer(get_response=0, execute_response=execute_response)
         directoryservice.DirectoryService(self._filer).set_advanced_mapping(advanced_mapping)
-        self._filer.api.get.assert_has_calls([
-            mock.call('/status/fileservices/cifs/joinStatus'),
-            mock.call('/config/fileservices/cifs/idMapping/map')
-        ])
+        self._filer.api.get.assert_called_once_with('/status/fileservices/cifs/joinStatus')
         self._filer.api.execute.assert_called_once_with('/status/fileservices/cifs', 'enumDiscoveredDomains')
         self._filer.api.put.assert_called_once_with('/config/fileservices/cifs/idMapping/map', mock.ANY)
         actual_param = self._filer.api.put.call_args[0][1]