Here you develop a detailed evaluation plan that will allow you to both monitor progress and ultimately evaluate impact and outcomes.  You may have started your evaluation planning earlier in the process, perhaps during the scoping stage, but before moving on to implementation you need to have a detailed plan in place.

A key element of the plan is to establish the starting point (that is, a baseline) against which you will be able to measure progress. You then need to develop appropriate indicators to measure performance and success, and consider your evaluation design and how you will collect information on each of the indicators. These indicators need to be tailored to the activities involved in your intervention.

Another important consideration is who will be responsible for carrying out the evaluation -  is this something your team will do, or will it be contracted out?

A realistic plan for monitoring and evaluation, both during and at the end of the intervention period, can then be built into the overall social marketing plan.