Non-existent or insufficient software documentation in the conception or development phase can lead to delays in diagnosing and remedying possible errors (if this is possible at all). If development is inadequately documented, it also increases the work involved in updating, adapting, or expanding the respective software later on.

If the administrator or user documentation is inadequate, the software could be managed or operated incorrectly in a productive environment. This can, for example, disrupt IT operations, create errors in work results, or delay workflows.