Sub-groups
Let the smaller groups keep their own books without leaving the society.
AssociatedWelfare lets a society create sub-groups that collect and hold their own money while remaining part of the wider organisation.
Different groups, different arrangements.
A village branch may have its own members and collections. A women's group may collect money for its own activities. Another group may have a different contribution arrangement.
The society does not have to force all of these groups into one contribution structure.
The society still sees the whole picture.
Each sub-group can keep its own financial records while officials can still understand how it fits within the wider society.