Category: News

API release news 03/26

MARCH 2026

1.) Breaking Change: Update to “Get Search criteria fields” endpoint.

Get Search criteria fields

We resolved an inconsistency regarding how possible options are returned for select fields. Previously, multiselect fields returned all options (both active and inactive), while single-select fields returned only active ones.

Update: Multiselect fields now behave the same as single-select fields and will only return active options. Inactive options are no longer included in the response payload.

2.) Link Email Attachments to Appointments

Create Appointments

A new optional parameter, mailMessageId, has been added to the calendar creation action. This feature allows attachments from a specified email to be automatically linked and saved to the ‘Files’ tab of the newly created appointment in the onOffice App, mirroring the functionality available in onOffice enterprise.

API release news 12/25

DECEMBER 2025

1.) New API call “Agents log / Activities”

Modify Agents log / Activities

2.) Retrieve Immofeedback status (Status der Nachbereitung)

New request parameter “showFollowUpStatus” and new value “followUpStatus” in response parameter “contacts”.

Get Appointments

3.) Set Immofeedback status (Status der Nachbereitung) via “Modify relations”

Request parameter “relationinfo” has been extended to include the value “statusTerminrueckmeldung”.

Modify Relations

4.) New API call for appointment conflicts

Get Appointment conflicts

API release news 06/25

JUNE 2025

1. New API call for calendar data

Get Appointments

A new API call allows the targeted reading of calendar entries. From now on, only the really relevant information will be transferred in an optimized structure. The lean solution forms the basis for future performance improvements. The old “Read calender” call can still be used.

2. New parameters in “basicSettings” call

Read Basic settings

The color values stored in the basic settings in onOffice enterprise – including customer logo and warning colors – are now also available via API. This opens up new possibilities for dynamic designs and interface applications.

3. Call “Get Estate images published on Homepage”: query exposé images specifically with new parameter “publicationSetting”

Get Estate images published on Homepage

We have extended the API call “Get Estate images published on Homepage”. It is now possible to query which images have been published for specific exposés – ideal for automated control of exposé content.