Sort allows you sort a branch with recommendation based any field in the recommendation. It sorts the recommendations of that specific branch that you use as input for this step. With multiple sorts combined you can control a certain sorting of recommendations where on one side you sort a number of recommendations on specific criteria, but then still control that a specific recommendation is showing up first in the output. Finally, the Sort step also allows you to limit the number of recommendations that will go through, with options All, 1, 2, 3, 4 and 5. This allows you to sort the recommendations and only let the top 3 go through.