In order to know whether they are achieving their social goals and how to manage for social performance microfinance institutions (MFIs) need to find out: 1) Who uses the programme's products and services? Who does the programme exclude? 2) Why and when do clients leave the programme or fail to fully utilise the available services? 3) What is the effect of the programme's products and services on current clients? MFIs can answer these questions. Some may have the in-house skills; others may choose to develop the skills and capacity to do so. Work with 30 Imp-Act partners has demonstrated that this is possible.