The invention relates to a computer implemented campaign management system (CAMS), the system including a graphical user interface (GUI), the management system (CAMS) processing a plurality of participant records (PREC) according to a user-configured process structure (PS) of a plurality of configured logic templates (CLT); wherein the participant records (PREC) comprise participant attributes (PA), and wherein the processing of participant records involves processing or modification of one or more of the participant attributes (PA) of the participant record (PREC), wherein the management system reads, processes and/or modifies participant attributes (PA) of participant records (PREC) by a sequence of one of more executable program fragments (EPF) according to the process structure (PS) and wherein the execution of one of more executable program fragments (EPF) can be suspended in response to user action (UACT) and/or participant action (PACT) and wherein the execution of the process structure can be resumed in response to user action (UACT) and/or participant action (PACT).