Automatic Data Processing, Inc., commonly known as ADP, is an American provider of human resources management software and services. Until 2014, ADP was one of four American companies in the S&P 500 to have a AAA credit rating from both Standard & Poor's and Moody's.
Zammad is a free helpdesk or issue tracking system. It offers the connection of various channels like email, chat, telephone
Zammad Integrations