General information / FAQ

Field names:

Many API calls have a data parameter where you can specify the field names to set or to retrieve. Almost all fields specified in the enterprise administration (Extras >> settings >> administration >> tab input fields) are valid and can be passed as elements of an array in the parameter data. The field names for the API is found in the column “field”. A list of field names for the modules address and estate can be downloaded there too.

Singleselect and multiselect fields:

In singleselect fields, you can select one value of several from the drop-down menu, e.g. the field “type of usage” can take the value residential, business, investment or live on time.

Multiple values can be selected for multiselect fields. Therefore multiselect arrays are to be queried in array notation, e.g. "parameters":{"HerkunftKontakt":["Suchmaschine","Newsletter"]}

The values that single and multi-select fields can assume are listed in onOffice enterprise under Extras-> Settings-> Administration on the “Singleselect” and “Multiselect” tabs.
For many fields, self-created values can also be entered there.

For more information on single and multi-select fields, see our online Help Center here.


The response parameter “cacheable” in every API call indicates if the API-Call is cachable. All API calls from the type “read” or “get” are cacheable. The SDK caches all “Read” and “Get” type responses when a cache object is passed from the outside.

You can use the interface onOfficeSDKCache from the SDK to implement your own cache. One example implementation of a database cache can be found in the onOffice WordPress-Plugin.

Rights for the API user:

Often, if no data can be read out, the user rights for the API user are not set properly or missing. The user rights can be set in onOffice enterprise under “Extras->Settings->User->Tab API user->Select API user->Tab rights”.

Rights set to “only own” are usually not enough for the API user. See also here.

Redirection of the API version:
If you are using a live client, it will automatically redirect to the stable API version, no matter what API version you set.
If you are using a beta client, it will automatically redirect to the latest API version, no matter what API version you set.

Data types:

Floating point values should be encapsulated in a string, e.g. "breitengrad":"52.65434" to avoid rare rounding errors.