LDAP Error Codes

Posted on Nov 21, 2009 (last modified Jun 1, 2021)

ERROR CODE	LDAPEXCEPTION CONSTANT	POSSIBLE CAUSE(S)
0	SUCCESS	The operation completed successfully
1	OPERATION_ERROR	Invalid syntax for ACI or schema, or inappropriate control for the operation
2	PROTOCOL_ERROR	Invalid filter expression on search, or DN on add, modify, or delete
3	TIME_LIMIT_EXCEEDED	Either the server’s or the client’s specified search time limit was exceeded
4	SIZE_LIMIT_EXCEEDED	Either the server’s or the client’s specified limit on number of search results was exceeded
5	COMPARE_FALSE	A compare operation returns mismatch
6	COMPARE_TRUE	A compare operation returns match
7	AUTH_METHOD_NOT_SUPPORTED	The server does not support the requested authentication method
8	STRONG_AUTH_REQUIRED	The server requires an authentication method stronger than unencrypted user name and password
9	LDAP_PARTIAL_RESULTS	The client has bound with LDAPv2, or the server supports only LDAPv2, and the base DN specified by the client is not among the naming contexts of the server
10	REFERRAL	The server is configured to return a referral or search reference when an operation is directed toward this DN
11	ADMIN_LIMIT_EXCEEDED	To satisfy the search request, the server would need to process too many entries; the search may need to be narrowed, or the server’s look-through limit raised
12	UNAVAILABLE_CRITICAL_EXTENSION	A control was provided with the request; the control was tagged as critical, but the server doesn’t support it
13	CONFIDENTIALITY_REQUIRED	.
14	SASL_BIND_IN_PROGRESS	SASL authentication is being negotiated between the client and the server
16	NO_SUCH_ATTRIBUTE	An attribute to be modified or deleted was not present in the entry
17	UNDEFINED_ATTRIBUTE_TYPE	.
18	INAPPROPRIATE_MATCHING	.
19	CONSTRAINT_VIOLATION	Invalid attribute for this entry, or new password does not meet password policy requirements
20	ATTRIBUTE_OR_VALUE_EXISTS	Attempt to add an identical attribute value to an existing one
21	INVALID_ATTRIBUTE_SYNTAX	.
32	NO_SUCH_OBJECT	Attempt to bind with a nonexistent DN, to search with a nonexistent base DN, or to modify or delete a nonexistent DN
33	ALIAS_PROBLEM	.
34	INVALID_DN_SYNTAX	Invalid DN or RDN specified on adding an entry or modifying an RDN
35	IS_LEAF	.
36	ALIAS_DEREFERENCING_PROBLEM	.
48	INAPPROPRIATE_AUTHENTICATION	.
49	INVALID_CREDENTIALS	Invalid password or other credentials supplied on bind
50	INSUFFICIENT_ACCESS_RIGHTS	.
51	BUSY	.
52	UNAVAILABLE	Returned by SDK if server is not accessible
53	UNWILLING_TO_PERFORM	User not allowed to change password, password expired, operation not implemented (moddn), attempt to modify read-only attribute, attempt to delete all schema elements, attempt to delete an object class that has derived object classes, attempt to delete a read-only schema element, the database is read-only, no back end (database) is available for the operation, or other uncategorized error
54	LOOP_DETECT	.
64	NAMING_VIOLATION	.
65	OBJECT_CLASS_VIOLATION	Invalid attribute specified for modify operation on an entry
66	NOT_ALLOWED_ON_NONLEAF	Attempt to delete an entry that has child nodes
67	NOT_ALLOWED_ON_RDN	.
68	ENTRY_ALREADY_EXISTS	.
69	OBJECT_CLASS_MODS_PROHIBITED	.
71	AFFECTS_MULTIPLE_DSAS	.
80	OTHER	.
81	SERVER_DOWN	SDK could not connect to server
89	PARAM_ERROR	No modifications on a modify operation, no attributes on an add operation, invalid scope or empty search filter on search, or other invalid argument to an SDK method
91	CONNECT_ERROR	SDK reports unexpected error connecting to server
92	LDAP_NOT_SUPPORTED	.
93	CONTROL_NOT_FOUND	.
94	NO_RESULTS_RETURNED	.
95	MORE_RESULTS_TO_RETURN	.
96	CLIENT_LOOP	.
97	REFERRAL_LIMIT_EXCEEDED	SDK reports hop limit exceeded on referral processing