# Directory Services Engine extends beyond IoT control/monitoring when integrated with one of several enterprise directory service options. Directory service integration enables the Engine Staff API, which allows apps to offer experiences such as room searching/booking, user directory searching and calendar event information/interactions. Data from directory services can be combined with IoT and/or location services data to add meaningful context to user interactions within a space. The result can be used to trigger an event in the space in real time or stored for retrospective analytics. The preferred directory service is Microsoft Office 365 via Graph API. Other options are Microsoft Exchange (via EWS) and IBM Domino (via Domino Access Service). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://engine.place.technology/integrations/directory-services.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.