That a sociologist needs both structural approaches and action approaches in order to understand society he said human behaviour is described on two levels:
the level of cause - which explains how behaviour is shaped by objective social factors
the level of meaning - which looks at subjective meanings that people attach to their actions.
Weber tried to categorise these meanings into 4 different types of actions:
instrumentally rational action - is based on the most efficient means of achieving a goal
value - rational action is taken because something is important for its own sake
traditional action - is based on habit
affectual action - is based on emotion
Why is social action theory criticised?
For being subjective
Why is Weber criticised?
For focusing too much on individual meanings and not explaining how we develop shared ones - e.g. everyone knows that standing up when someone enters the room is a sign of respect
It can also be difficult to classify actions into just 1 of the 4 types for example, you might build a bridge to get across a river but you might also try to make that bridge beautiful