The field service software Handyman has a standard interface to Lexware® enterprise resource planning. Mobile and offline you process your orders in Handyman. In Lexware® you can easily post and invoice the orders afterwards. This eliminates the need to type work tickets, time sheets, and other forms filled out by technicians on the road into Lexware®. The service technician creates his digital service report in Handyman Mobile with mobile time recording, electronic inventory management, mobile processing of checklists, photo documentation and electronic signature of the customer. Mobile order entry - e.g. of new fault reports on site - is also possible with the Handyman mobile application. At the same time, mobile customer service with the field service app can work not only mobile but also offline. This is indispensable, especially in field service. The orders are transferred electronically from the mobile to Lexware® merchandise management and the like - without any paper at all. The Lexware interface can equally be used to couple mobile order processing with the related products Lexware® faktura und auftrag, Lexware® warenwirtschaft or Lexware® financial office. Since the interface is based on the standard Lexware® solution, it does not require any programming in haufe Lexware®. This is why the combination of the Handyman app with Lexware® is particularly popular with self-employed people and small businesses. This makes Handyman the best alternative to add mobile data capture, mobile time tracking or customer service functions to Lexware.