Techniques for dynamically building documentation based on installed services are described herein. In an embodiment, a plurality of different electronic documents are stored in a data repository. A server computer system identifies one or more service software components of an application program that have been installed as part of a particular application instance. The server computer identifies a subset of one or more particular documents from the plurality of documents stored in the data repository that correspond to the identified one or more services. Using the subset of one or more particular documents, the server generates a particular customized document which is then stored in association with the particular application instance.