diff --git a/ldapserver/README.md b/ldapserver/README.md
index 6079acc..da77722 100644
--- a/ldapserver/README.md
+++ b/ldapserver/README.md
@@ -17,3 +17,8 @@ That means you have the right to study, change, and distribute the software and
 ## Acknowledgements
 
 Thanks to Pat S for all his help integrating with Active Directory.
+
+## Changes
+
+09/17/2021: An error in the LDAP functionality was discovered when the proposed user name exceeded 20 characters.  Unfortunately Active Directory has this limitation in the length of the sAMAccountName attribute in order to provide backward compatibility to pre-win2000 calls.  
+It was realized that an assumption had been made that the login name and the sAMAccountName were interchangable.  This has been fixed. 
diff --git a/ldapserver/ldap_functions.py b/ldapserver/ldap_functions.py
index 192a087..0d448b9 100644
--- a/ldapserver/ldap_functions.py
+++ b/ldapserver/ldap_functions.py
@@ -46,7 +46,7 @@ def find_user(query):
     try:
         logger.info('Looking up user ' + query)
         ldap_conn.simple_bind_s(secrets.LDAP_USERNAME, secrets.LDAP_PASSWORD)
-        criteria = '(&(objectClass=user)(|(mail={})(sAMAccountName={}))(!(objectClass=computer)))'.format(query, query)
+        criteria = '(&(objectClass=user)(|(mail={})(sAMAccountName={})(userPrincipalName={}*))(!(objectClass=computer)))'.format(query, query, query)
         results = ldap_conn.search_s(secrets.BASE_MEMBERS, ldap.SCOPE_SUBTREE, criteria, ['displayName','sAMAccountName','email'])
 
         logger.info('  Results: ' + str(results))
@@ -91,7 +91,7 @@ def create_user(first, last, username, email, password):
             ('objectClass', [b'top', b'person', b'organizationalPerson', b'user']),
             ('cn', [full_name.encode()]),
             ('userPrincipalName', [username.encode()]),
-            ('sAMAccountName', [username.encode()]),
+            ('sAMAccountName', [username.encode()[:20]]),
             ('givenName', [first.encode()]),
             ('sn', [last.encode()]),
             ('DisplayName', [full_name.encode()]),
@@ -240,7 +240,7 @@ def list_group(groupname):
     try:
         ldap_conn.simple_bind_s(secrets.LDAP_USERNAME, secrets.LDAP_PASSWORD)
         group_dn = find_group(groupname)
-        
+
         criteria = '(&(objectClass=group)(sAMAccountName={}))'.format(groupname)
         results = ldap_conn.search_s(secrets.BASE_GROUPS, ldap.SCOPE_SUBTREE, criteria, ['member'])
         members_tmp = results[0][1]
@@ -250,6 +250,24 @@ def list_group(groupname):
     finally:
         ldap_conn.unbind()
 
+def delete_user(username):
+    '''
+    Delete user;  required data is sAMAccountName or userPrincipleName
+    '''
+    ldap_conn = init_ldap()
+    try:
+        logger.info('Deleting user: ' + username)
+
+        ldap_conn.simple_bind_s(secrets.LDAP_USERNAME, secrets.LDAP_PASSWORD)
+        user_dn = find_user(username)
+        result = ldap_conn.delete_s(user_dn)
+
+        logger.info('  Result: ' + str(result))
+        return result
+
+    finally:
+        ldap_conn.unbind()
+
 def is_member(groupname, username):
     '''
     Checks to see if a user is a member of a group
@@ -305,10 +323,17 @@ def dump_users():
 
 if __name__ == '__main__':
     pass
-    #print(create_user('Elon', 'Tusk', 'elon.tusk', 'elont@example.com', 'protospace*&^g87g6'))
-    #print(find_user('tanner.collin'))
-    #print(set_password('tanner.collin', 'Supersecret@@'))
-    #print(find_dn('CN=Tanner Collin,OU=MembersOU,DC=ps,DC=protospace,DC=ca'))
+    print("=-=-=-=-=-=-=-=-=-=")
+    #print(create_user('Elon', 'Tusk', 'elon.tusk', 'elon.tusk@lab39.lab', 'protospace*&^g87g6'))
+    #print(find_user('noorullah.hussain.zada'))
+    #print("----------")
+    #print(find_user('pat.spencer'))
+    print("----------")
+    print(find_user('elon.tusk'))
+    print("----------")
+    print(delete_user('elon.tusk'))
+    print("----------")
+    print(find_user('elon.tusk'))
     #print("============================================================")
     #print(create_group("newgroup", "new group"))
     #print("   ==============  ")
@@ -322,9 +347,10 @@ if __name__ == '__main__':
     #print("   ==============  ")
     #print(remove_from_group('newgroup','tanner.collin'))
     #print("   ==============  ")
-    print(list_group('Trotec Users'))
+    #print(list_group('Trotec Users'))
     #print(dump_users())
 
     #users = list_group('Laser Users')
     #import json
     #print(json.dumps(users, indent=4))
+(
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