Could not create user: Error creating subcontext

Hi there,

I’ve been trying to setup keycloak to interact with an oldap database. Currently we have it connected to the database through federation, it syncs users from the db fine but when we try to add a user we get the following error:

keycloak[1121]: 20:40:41,359 WARN [] (default task-98) Could not create user: org.keycloak.models.ModelException: Error creating subcontext [cn=james.hastings,ou=People,dc=domain,dc=com]

(domain is replaced with our domain, everything else is as is)

Further down the line in the server.log, we see another error well, although this may be caused by above:

Caused by: [LDAP: error code 21 - objectclass: value #0 invalid per syntax]; remaining name ‘cn=james.hastings,ou=People,dc=domain,dc=com’

Any help in understanding why this is occurring would be greatly appreciated, and I will provide any additional information needed.

We have the following attributes on the federation settings:
priority: 0
import users: on
edit mode: writable
sync registration: on
vendor: other
username LDAP attribute: cn
RDN LDAP attribute: cn
UUID LDAP attribute: entryUUID
UserObjectClasses: *
Bind Type: Simple
Enable StartTLS: Off (for now)
Search Scope: One Level
Use Truststore SPI: Only for ldaps
Connection Pooling: On
Pagination: On

connection and authentication both succeed