Import my LDAP Birthday into the Calendar

Hi there,
I manage my contacts in LDAP and access them via nextcloud using the “LDAP / AD integration” app. The birthday field is also in the LDAP contacts. See excerpt from the LDIF file.

# LDIF Export for uid=stefan.harbich,ou=users,dc=example,dc=com
# Server: My LDAP Server (ldaps://ldap.intern.example.com)
# Suchbereich: base
# Suchfilter: (objectClass=*)
# Anzahl der Eintraege: 1
#
# Generated by phpLDAPadmin (http://phpldapadmin.sourceforge.net) on October 5, 2021 1:14 pm
# Version: 1.2.3
version: 1
# Eintrag 1: uid=stefan.harbich,ou=users,dc=example,dc=com
dn: uid=stefan.harbich,ou=users,dc=example,dc=com
birthdate: 1968-01-02

root@dsme01:/var/www/html/nextcloud# sudo -u www-data php occ app:list

Enabled:
  - accessibility: 1.7.0
  - activity: 2.15.0
  - bruteforcesettings: 2.2.0
  - calendar: 2.3.4
  - circles: 22.1.1
  - cloud_federation_api: 1.4.0
  - comments: 1.11.0
  - contactsinteraction: 1.2.0
  - dashboard: 7.1.0
  - dav: 1.18.0
  - federatedfilesharing: 1.11.0
  - federation: 1.11.0
  - files: 1.16.0
  - files_pdfviewer: 2.3.0
  - files_rightclick: 1.1.0
  - files_sharing: 1.13.2
  - files_trashbin: 1.11.0
  - files_versions: 1.14.0
  - files_videoplayer: 1.11.0
  - firstrunwizard: 2.11.0
  - ldap_write_support: 1.4.0
  - ldapcontacts: 2.0.5
  - logreader: 2.7.0
  - lookup_server_connector: 1.9.0
  - nextcloud_announcements: 1.11.0
  - notifications: 2.10.1
  - oauth2: 1.9.0
  - password_policy: 1.12.0
  - photos: 1.4.0
  - privacy: 1.6.0
  - provisioning_api: 1.11.0
  - recommendations: 1.1.0
  - serverinfo: 1.12.0
  - settings: 1.3.0
  - sharebymail: 1.11.0
  - support: 1.5.0
  - survey_client: 1.10.0
  - systemtags: 1.11.0
  - text: 3.3.0
  - theming: 1.12.0
  - twofactor_backupcodes: 1.10.1
  - updatenotification: 1.11.0
  - user_ldap: 1.11.0
  - user_status: 1.1.1
  - viewer: 1.6.0
  - weather_status: 1.1.0
  - workflowengine: 2.3.1
Disabled:
  - admin_audit
  - contacts
  - encryption
  - files_external

root@dsme01:/var/www/html/nextcloud# sudo -u www-data php occ config:list system

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "nextcloud.intern.example.com"
        ],
        "log_type": "file",
        "logfile": "nextcloud.log",
        "loglevel": 0,
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "22.1.1.2",
        "overwrite.cli.url": "https:\/\/nextcloud.intern.example.com",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "3306",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "default_phone_region": "DE",
        "memcache.local": "\\OC\\Memcache\\Redis",
        "filelocking.enabled": "true",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "timeout": 1.5
        },
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
        "app_install_overwrite": [
            "ldapcontacts",
            "ldaporg"
        ]
    }
}

root@dsme01:/var/www/html/nextcloud# sudo -u www-data php occ ldap:show-config

+-------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Configuration                 | s01                                                                                                                                                                                         |
+-------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| hasMemberOfFilterSupport      |                                                                                                                                                                                             |
| homeFolderNamingRule          |                                                                                                                                                                                             |
| lastJpegPhotoLookup           | 0                                                                                                                                                                                           |
| ldapAgentName                 | cn=admin,dc=example,dc=com                                                                                                                                                                    |
| ldapAgentPassword             | ***                                                                                                                                                                                         |
| ldapAttributesForGroupSearch  |                                                                                                                                                                                             |
| ldapAttributesForUserSearch   |                                                                                                                                                                                             |
| ldapBackupHost                |                                                                                                                                                                                             |
| ldapBackupPort                |                                                                                                                                                                                             |
| ldapBase                      | dc=example,dc=com                                                                                                                                                                             |
| ldapBaseGroups                | ou=groups,dc=example,dc=com                                                                                                                                                                   |
| ldapBaseUsers                 | ou=users,dc=example,dc=com                                                                                                                                                                    |
| ldapCacheTTL                  | 600                                                                                                                                                                                         |
| ldapConfigurationActive       | 1                                                                                                                                                                                           |
| ldapDefaultPPolicyDN          |                                                                                                                                                                                             |
| ldapDynamicGroupMemberURL     |                                                                                                                                                                                             |
| ldapEmailAttribute            | mail                                                                                                                                                                                        |
| ldapExperiencedAdmin          | 0                                                                                                                                                                                           |
| ldapExpertUUIDGroupAttr       | gidnumber                                                                                                                                                                                   |
| ldapExpertUUIDUserAttr        | uid                                                                                                                                                                                         |
| ldapExpertUsernameAttr        | uid                                                                                                                                                                                         |
| ldapExtStorageHomeAttribute   |                                                                                                                                                                                             |
| ldapGidNumber                 | gidNumber                                                                                                                                                                                   |
| ldapGroupDisplayName          | gidnumber                                                                                                                                                                                   |
| ldapGroupFilter               | (&(|(objectclass=posixGroup))(|(cn=benutzer)))                                                                                                                                              |
| ldapGroupFilterGroups         | benutzer                                                                                                                                                                                    |
| ldapGroupFilterMode           | 0                                                                                                                                                                                           |
| ldapGroupFilterObjectclass    | posixGroup                                                                                                                                                                                  |
| ldapGroupMemberAssocAttr      | gidNumber                                                                                                                                                                                   |
| ldapHost                      | ldaps://ldap.intern.example.com                                                                                                                                                               |
| ldapIgnoreNamingRules         |                                                                                                                                                                                             |
| ldapLoginFilter               | (&(|(objectclass=account)(objectclass=evolutionPerson)(objectclass=inetOrgPerson)(objectclass=mailExtension)(objectclass=organizationalPerson)(objectclass=person)                          |
|                               | (objectclass=dcExternalMailAccount)(dcSubMailAddress=%dcSubMailAddress)                                                                                                                     |
|                               | (objectclass=posixAccount))(uid=%uid))                                                                                                                                                      |
| ldapLoginFilterAttributes     |                                                                                                                                                                                             |
| ldapLoginFilterEmail          | 0                                                                                                                                                                                           |
| ldapLoginFilterMode           | 1                                                                                                                                                                                           |
| ldapLoginFilterUsername       | 1                                                                                                                                                                                           |
| ldapMatchingRuleInChainState  | unknown                                                                                                                                                                                     |
| ldapNestedGroups              | 0                                                                                                                                                                                           |
| ldapOverrideMainServer        |                                                                                                                                                                                             |
| ldapPagingSize                | 500                                                                                                                                                                                         |
| ldapPort                      | 636                                                                                                                                                                                         |
| ldapQuotaAttribute            |                                                                                                                                                                                             |
| ldapQuotaDefault              |                                                                                                                                                                                             |
| ldapTLS                       | 0                                                                                                                                                                                           |
| ldapUserAvatarRule            | default                                                                                                                                                                                     |
| ldapUserDisplayName           | cn                                                                                                                                                                                          |
| ldapUserDisplayName2          |                                                                                                                                                                                             |
| ldapUserFilter                | (|(objectclass=account)(objectclass=evolutionPerson)(objectclass=inetOrgPerson)(objectclass=mailExtension)(objectclass=organizationalPerson)(objectclass=person)(objectclass=posixAccount)) |
| ldapUserFilterGroups          |                                                                                                                                                                                             |
| ldapUserFilterMode            | 0                                                                                                                                                                                           |
| ldapUserFilterObjectclass     | account;evolutionPerson;inetOrgPerson;mailExtension;organizationalPerson;person;posixAccount                                                                                                |
| ldapUuidGroupAttribute        | auto                                                                                                                                                                                        |
| ldapUuidUserAttribute         | auto                                                                                                                                                                                        |
| turnOffCertCheck              | 0                                                                                                                                                                                           |
| turnOnPasswordChange          | 0                                                                                                                                                                                           |
| useMemberOfToDetectMembership | 1                                                                                                                                                                                           |
+-------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

How do I get the birthday in my calendar?
Greetings from Stefan

Hi there,
is nobody in the forum concerned with the LDAP integration? All attributes are managed by me in the LDAP. Telephone systems, mail programs and also Nextcloud should look for attributes from the LDAP.
Unfortunately, the birthday attribute from the evolutionPerson object class is not adopted in the Nextcloud calendar. Is there no solution for this?
Greetings from Stefan Harbich