It is now only maintained by T-Systems, since ProSoz left the consortium in May 2005, allegedly due to being on the brink of bankruptcy, (according to the local paper "Hertener Allgemeine").
Administrative changes are only possible by direct access to the system via intranet of the Bundesagentur für Arbeit - the social services agency responsible for administering welfare.
The application server was developed using Microsoft's (D)COM technology and uses an Informix 9.4x database running on a Solaris machine containing 80 CPUs and a 300 GB Cache-RAM.
The first major error was found during the first payment - account numbers which were shorter than the standard 10 digits were filled up with zeros on the end instead of the beginning (i.e., 1234567 became 1234567000 instead of the correct 0001234567).
Due to the massive number of mistakes, the banks had to invest much effort into locating the owners, and the government had to issue emergency cash so that people could buy food.
New legal rules for deducting current income from small jobs could not be completed in time for the official start of the system on October 1, 2005.